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Finding the Fourth Proportional to 22,351.88, 30,844.49 and 13,397.64

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Solution

The fourth proportional to 22,351.88, 30,844.49 and 13,397.64 is: 18,488.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,351.88 : 30,844.49 = 13,397.64 : x
  2. Step 2: Convert to fraction form
    22,351.88/30,844.49 = 13,397.64/x
  3. Step 3: Cross multiply
    22,351.88x = 30,844.49 × 13,397.64
  4. Step 4: Simplify right side
    22,351.88x = 413,243,306.02
  5. Step 5: Solve for x
    x = 413,243,306.02/22,351.88
  6. Step 6: Final answer
    x = 18,488.08

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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.