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Finding the Fourth Proportional to 22,691.61, 34,037.58 and 7,900.49

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Solution

The fourth proportional to 22,691.61, 34,037.58 and 7,900.49 is: 11,850.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,691.61 : 34,037.58 = 7,900.49 : x
  2. Step 2: Convert to fraction form
    22,691.61/34,037.58 = 7,900.49/x
  3. Step 3: Cross multiply
    22,691.61x = 34,037.58 × 7,900.49
  4. Step 4: Simplify right side
    22,691.61x = 268,913,560.41
  5. Step 5: Solve for x
    x = 268,913,560.41/22,691.61
  6. Step 6: Final answer
    x = 11,850.79

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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.