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Finding the Fourth Proportional to 60,161.87, 82,987.05 and 38,644.37

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Solution

The fourth proportional to 60,161.87, 82,987.05 and 38,644.37 is: 53,305.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,161.87 : 82,987.05 = 38,644.37 : x
  2. Step 2: Convert to fraction form
    60,161.87/82,987.05 = 38,644.37/x
  3. Step 3: Cross multiply
    60,161.87x = 82,987.05 × 38,644.37
  4. Step 4: Simplify right side
    60,161.87x = 3,206,981,850.47
  5. Step 5: Solve for x
    x = 3,206,981,850.47/60,161.87
  6. Step 6: Final answer
    x = 53,305.89

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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.