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Finding the Fourth Proportional to 41,385, 62,116.35 and 21,677.70

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Solution

The fourth proportional to 41,385, 62,116.35 and 21,677.70 is: 32,536.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,385 : 62,116.35 = 21,677.70 : x
  2. Step 2: Convert to fraction form
    41,385/62,116.35 = 21,677.70/x
  3. Step 3: Cross multiply
    41,385x = 62,116.35 × 21,677.70
  4. Step 4: Simplify right side
    41,385x = 1,346,539,600.40
  5. Step 5: Solve for x
    x = 1,346,539,600.40/41,385
  6. Step 6: Final answer
    x = 32,536.90

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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.