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Finding the Fourth Proportional to 58,614.88, 87,922.32 and 38,931.88

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Solution

The fourth proportional to 58,614.88, 87,922.32 and 38,931.88 is: 58,397.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,614.88 : 87,922.32 = 38,931.88 : x
  2. Step 2: Convert to fraction form
    58,614.88/87,922.32 = 38,931.88/x
  3. Step 3: Cross multiply
    58,614.88x = 87,922.32 × 38,931.88
  4. Step 4: Simplify right side
    58,614.88x = 3,422,981,211.56
  5. Step 5: Solve for x
    x = 3,422,981,211.56/58,614.88
  6. Step 6: Final answer
    x = 58,397.82

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1.5x scale

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.