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Finding the Fourth Proportional to 65,753.18, 90,737.56 and 37,072.59

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Solution

The fourth proportional to 65,753.18, 90,737.56 and 37,072.59 is: 51,159.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,753.18 : 90,737.56 = 37,072.59 : x
  2. Step 2: Convert to fraction form
    65,753.18/90,737.56 = 37,072.59/x
  3. Step 3: Cross multiply
    65,753.18x = 90,737.56 × 37,072.59
  4. Step 4: Simplify right side
    65,753.18x = 3,363,876,266.80
  5. Step 5: Solve for x
    x = 3,363,876,266.80/65,753.18
  6. Step 6: Final answer
    x = 51,159.15

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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.