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Finding the Fourth Proportional to 84,337.78, 126,506.61 and 22,008.28

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Solution

The fourth proportional to 84,337.78, 126,506.61 and 22,008.28 is: 33,012.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,337.78 : 126,506.61 = 22,008.28 : x
  2. Step 2: Convert to fraction form
    84,337.78/126,506.61 = 22,008.28/x
  3. Step 3: Cross multiply
    84,337.78x = 126,506.61 × 22,008.28
  4. Step 4: Simplify right side
    84,337.78x = 2,784,192,894.73
  5. Step 5: Solve for x
    x = 2,784,192,894.73/84,337.78
  6. Step 6: Final answer
    x = 33,012.40

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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.