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Finding the Fourth Proportional to 57,983.04, 87,008.02 and 31,329.10

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Solution

The fourth proportional to 57,983.04, 87,008.02 and 31,329.10 is: 47,011.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,983.04 : 87,008.02 = 31,329.10 : x
  2. Step 2: Convert to fraction form
    57,983.04/87,008.02 = 31,329.10/x
  3. Step 3: Cross multiply
    57,983.04x = 87,008.02 × 31,329.10
  4. Step 4: Simplify right side
    57,983.04x = 2,725,882,959.38
  5. Step 5: Solve for x
    x = 2,725,882,959.38/57,983.04
  6. Step 6: Final answer
    x = 47,011.73

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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.