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Finding the Fourth Proportional to 42,660.59, 58,859.80 and 27,553.88

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Solution

The fourth proportional to 42,660.59, 58,859.80 and 27,553.88 is: 38,016.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,660.59 : 58,859.80 = 27,553.88 : x
  2. Step 2: Convert to fraction form
    42,660.59/58,859.80 = 27,553.88/x
  3. Step 3: Cross multiply
    42,660.59x = 58,859.80 × 27,553.88
  4. Step 4: Simplify right side
    42,660.59x = 1,621,815,944.29
  5. Step 5: Solve for x
    x = 1,621,815,944.29/42,660.59
  6. Step 6: Final answer
    x = 38,016.73

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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.