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Finding the Fourth Proportional to 38,991.99, 58,487.97 and 15,310.69

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Solution

The fourth proportional to 38,991.99, 58,487.97 and 15,310.69 is: 22,966.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,991.99 : 58,487.97 = 15,310.69 : x
  2. Step 2: Convert to fraction form
    38,991.99/58,487.97 = 15,310.69/x
  3. Step 3: Cross multiply
    38,991.99x = 58,487.97 × 15,310.69
  4. Step 4: Simplify right side
    38,991.99x = 895,491,177.40
  5. Step 5: Solve for x
    x = 895,491,177.40/38,991.99
  6. Step 6: Final answer
    x = 22,966.03

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Similar ratio
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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.