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Finding the Fourth Proportional to 60,023.31, 90,008.44 and 31,936.70

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Solution

The fourth proportional to 60,023.31, 90,008.44 and 31,936.70 is: 47,890.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,023.31 : 90,008.44 = 31,936.70 : x
  2. Step 2: Convert to fraction form
    60,023.31/90,008.44 = 31,936.70/x
  3. Step 3: Cross multiply
    60,023.31x = 90,008.44 × 31,936.70
  4. Step 4: Simplify right side
    60,023.31x = 2,874,572,690.93
  5. Step 5: Solve for x
    x = 2,874,572,690.93/60,023.31
  6. Step 6: Final answer
    x = 47,890.94

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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.