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Finding the Fourth Proportional to 38,006.88, 52,449.12 and 21,239.88

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Solution

The fourth proportional to 38,006.88, 52,449.12 and 21,239.88 is: 29,310.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,006.88 : 52,449.12 = 21,239.88 : x
  2. Step 2: Convert to fraction form
    38,006.88/52,449.12 = 21,239.88/x
  3. Step 3: Cross multiply
    38,006.88x = 52,449.12 × 21,239.88
  4. Step 4: Simplify right side
    38,006.88x = 1,114,013,014.91
  5. Step 5: Solve for x
    x = 1,114,013,014.91/38,006.88
  6. Step 6: Final answer
    x = 29,310.83

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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.