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Finding the Fourth Proportional to 76,691.40, 115,049.70 and 24,088.20

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Solution

The fourth proportional to 76,691.40, 115,049.70 and 24,088.20 is: 36,136.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,691.40 : 115,049.70 = 24,088.20 : x
  2. Step 2: Convert to fraction form
    76,691.40/115,049.70 = 24,088.20/x
  3. Step 3: Cross multiply
    76,691.40x = 115,049.70 × 24,088.20
  4. Step 4: Simplify right side
    76,691.40x = 2,771,340,183.54
  5. Step 5: Solve for x
    x = 2,771,340,183.54/76,691.40
  6. Step 6: Final answer
    x = 36,136.26

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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.