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Finding the Fourth Proportional to 22,691.70, 34,037.55 and 12,850.20

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Solution

The fourth proportional to 22,691.70, 34,037.55 and 12,850.20 is: 19,275.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,691.70 : 34,037.55 = 12,850.20 : x
  2. Step 2: Convert to fraction form
    22,691.70/34,037.55 = 12,850.20/x
  3. Step 3: Cross multiply
    22,691.70x = 34,037.55 × 12,850.20
  4. Step 4: Simplify right side
    22,691.70x = 437,389,325.01
  5. Step 5: Solve for x
    x = 437,389,325.01/22,691.70
  6. Step 6: Final answer
    x = 19,275.30

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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.