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Finding the Fourth Proportional to 60,691.32, 83,794.32 and 39,190.68

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Solution

The fourth proportional to 60,691.32, 83,794.32 and 39,190.68 is: 54,109.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,691.32 : 83,794.32 = 39,190.68 : x
  2. Step 2: Convert to fraction form
    60,691.32/83,794.32 = 39,190.68/x
  3. Step 3: Cross multiply
    60,691.32x = 83,794.32 × 39,190.68
  4. Step 4: Simplify right side
    60,691.32x = 3,283,956,380.94
  5. Step 5: Solve for x
    x = 3,283,956,380.94/60,691.32
  6. Step 6: Final answer
    x = 54,109.16

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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.