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Finding the Fourth Proportional to 22,375.71, 30,877.86 and 12,304.17

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Solution

The fourth proportional to 22,375.71, 30,877.86 and 12,304.17 is: 16,979.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,375.71 : 30,877.86 = 12,304.17 : x
  2. Step 2: Convert to fraction form
    22,375.71/30,877.86 = 12,304.17/x
  3. Step 3: Cross multiply
    22,375.71x = 30,877.86 × 12,304.17
  4. Step 4: Simplify right side
    22,375.71x = 379,926,438.68
  5. Step 5: Solve for x
    x = 379,926,438.68/22,375.71
  6. Step 6: Final answer
    x = 16,979.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.