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Finding the Fourth Proportional to 22,400.88, 30,902.87 and 13,432.83

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Solution

The fourth proportional to 22,400.88, 30,902.87 and 13,432.83 is: 18,531.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,400.88 : 30,902.87 = 13,432.83 : x
  2. Step 2: Convert to fraction form
    22,400.88/30,902.87 = 13,432.83/x
  3. Step 3: Cross multiply
    22,400.88x = 30,902.87 × 13,432.83
  4. Step 4: Simplify right side
    22,400.88x = 415,113,032.80
  5. Step 5: Solve for x
    x = 415,113,032.80/22,400.88
  6. Step 6: Final answer
    x = 18,531.10

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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.