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Finding the Fourth Proportional to 36,691.10, 54,927.30 and 21,892.40

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Solution

The fourth proportional to 36,691.10, 54,927.30 and 21,892.40 is: 32,773.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,691.10 : 54,927.30 = 21,892.40 : x
  2. Step 2: Convert to fraction form
    36,691.10/54,927.30 = 21,892.40/x
  3. Step 3: Cross multiply
    36,691.10x = 54,927.30 × 21,892.40
  4. Step 4: Simplify right side
    36,691.10x = 1,202,490,422.52
  5. Step 5: Solve for x
    x = 1,202,490,422.52/36,691.10
  6. Step 6: Final answer
    x = 32,773.35

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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.