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Finding the Fourth Proportional to 8,943.66, 13,415.49 and 3,100.32

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Solution

The fourth proportional to 8,943.66, 13,415.49 and 3,100.32 is: 4,650.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,943.66 : 13,415.49 = 3,100.32 : x
  2. Step 2: Convert to fraction form
    8,943.66/13,415.49 = 3,100.32/x
  3. Step 3: Cross multiply
    8,943.66x = 13,415.49 × 3,100.32
  4. Step 4: Simplify right side
    8,943.66x = 41,592,311.96
  5. Step 5: Solve for x
    x = 41,592,311.96/8,943.66
  6. Step 6: Final answer
    x = 4,650.48

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.