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Finding the Fourth Proportional to 65,593.56, 90,503.01 and 38,365.41

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Solution

The fourth proportional to 65,593.56, 90,503.01 and 38,365.41 is: 52,934.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,593.56 : 90,503.01 = 38,365.41 : x
  2. Step 2: Convert to fraction form
    65,593.56/90,503.01 = 38,365.41/x
  3. Step 3: Cross multiply
    65,593.56x = 90,503.01 × 38,365.41
  4. Step 4: Simplify right side
    65,593.56x = 3,472,185,084.88
  5. Step 5: Solve for x
    x = 3,472,185,084.88/65,593.56
  6. Step 6: Final answer
    x = 52,934.85

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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.