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Finding the Fourth Proportional to 8,451.86, 11,649.58 and 6,352.34

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Solution

The fourth proportional to 8,451.86, 11,649.58 and 6,352.34 is: 8,755.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,451.86 : 11,649.58 = 6,352.34 : x
  2. Step 2: Convert to fraction form
    8,451.86/11,649.58 = 6,352.34/x
  3. Step 3: Cross multiply
    8,451.86x = 11,649.58 × 6,352.34
  4. Step 4: Simplify right side
    8,451.86x = 74,002,093.02
  5. Step 5: Solve for x
    x = 74,002,093.02/8,451.86
  6. Step 6: Final answer
    x = 8,755.72

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Find fourth proportional to 4,225.93, 5,824.79 and 3,176.17
Half scale
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Double scale
Find fourth proportional to 8,452.86, 11,650.96 and 6,353.34
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.