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Finding the Fourth Proportional to 8,649.26, 11,849.52 and 8,325.30

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Solution

The fourth proportional to 8,649.26, 11,849.52 and 8,325.30 is: 11,405.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,649.26 : 11,849.52 = 8,325.30 : x
  2. Step 2: Convert to fraction form
    8,649.26/11,849.52 = 8,325.30/x
  3. Step 3: Cross multiply
    8,649.26x = 11,849.52 × 8,325.30
  4. Step 4: Simplify right side
    8,649.26x = 98,650,808.86
  5. Step 5: Solve for x
    x = 98,650,808.86/8,649.26
  6. Step 6: Final answer
    x = 11,405.70

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.