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Finding the Fourth Proportional to 55,959.79, 83,872.92 and 39,000.97

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Solution

The fourth proportional to 55,959.79, 83,872.92 and 39,000.97 is: 58,454.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,959.79 : 83,872.92 = 39,000.97 : x
  2. Step 2: Convert to fraction form
    55,959.79/83,872.92 = 39,000.97/x
  3. Step 3: Cross multiply
    55,959.79x = 83,872.92 × 39,000.97
  4. Step 4: Simplify right side
    55,959.79x = 3,271,125,236.73
  5. Step 5: Solve for x
    x = 3,271,125,236.73/55,959.79
  6. Step 6: Final answer
    x = 58,454.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.