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Finding the Fourth Proportional to 67,660.32, 93,372.78 and 43,828.47

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Solution

The fourth proportional to 67,660.32, 93,372.78 and 43,828.47 is: 60,484.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,660.32 : 93,372.78 = 43,828.47 : x
  2. Step 2: Convert to fraction form
    67,660.32/93,372.78 = 43,828.47/x
  3. Step 3: Cross multiply
    67,660.32x = 93,372.78 × 43,828.47
  4. Step 4: Simplify right side
    67,660.32x = 4,092,386,087.05
  5. Step 5: Solve for x
    x = 4,092,386,087.05/67,660.32
  6. Step 6: Final answer
    x = 60,484.29

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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.