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Finding the Fourth Proportional to 38,990.70, 58,487.67 and 32,462.91

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Solution

The fourth proportional to 38,990.70, 58,487.67 and 32,462.91 is: 48,695.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,990.70 : 58,487.67 = 32,462.91 : x
  2. Step 2: Convert to fraction form
    38,990.70/58,487.67 = 32,462.91/x
  3. Step 3: Cross multiply
    38,990.70x = 58,487.67 × 32,462.91
  4. Step 4: Simplify right side
    38,990.70x = 1,898,679,967.32
  5. Step 5: Solve for x
    x = 1,898,679,967.32/38,990.70
  6. Step 6: Final answer
    x = 48,695.71

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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.