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Finding the Fourth Proportional to 71,073.28, 106,610.28 and 29,520.32

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Solution

The fourth proportional to 71,073.28, 106,610.28 and 29,520.32 is: 44,280.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,073.28 : 106,610.28 = 29,520.32 : x
  2. Step 2: Convert to fraction form
    71,073.28/106,610.28 = 29,520.32/x
  3. Step 3: Cross multiply
    71,073.28x = 106,610.28 × 29,520.32
  4. Step 4: Simplify right side
    71,073.28x = 3,147,169,580.89
  5. Step 5: Solve for x
    x = 3,147,169,580.89/71,073.28
  6. Step 6: Final answer
    x = 44,280.63

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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.