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Finding the Fourth Proportional to 71,569.09, 98,763.46 and 39,737.17

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Solution

The fourth proportional to 71,569.09, 98,763.46 and 39,737.17 is: 54,836.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,569.09 : 98,763.46 = 39,737.17 : x
  2. Step 2: Convert to fraction form
    71,569.09/98,763.46 = 39,737.17/x
  3. Step 3: Cross multiply
    71,569.09x = 98,763.46 × 39,737.17
  4. Step 4: Simplify right side
    71,569.09x = 3,924,580,399.81
  5. Step 5: Solve for x
    x = 3,924,580,399.81/71,569.09
  6. Step 6: Final answer
    x = 54,836.25

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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.