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Finding the Fourth Proportional to 73,189.53, 101,001.92 and 39,655.53

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Solution

The fourth proportional to 73,189.53, 101,001.92 and 39,655.53 is: 54,724.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,189.53 : 101,001.92 = 39,655.53 : x
  2. Step 2: Convert to fraction form
    73,189.53/101,001.92 = 39,655.53/x
  3. Step 3: Cross multiply
    73,189.53x = 101,001.92 × 39,655.53
  4. Step 4: Simplify right side
    73,189.53x = 4,005,284,470.34
  5. Step 5: Solve for x
    x = 4,005,284,470.34/73,189.53
  6. Step 6: Final answer
    x = 54,724.83

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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.