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Finding the Fourth Proportional to 61,838.74, 92,765.50 and 21,849.44

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Solution

The fourth proportional to 61,838.74, 92,765.50 and 21,849.44 is: 32,776.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,838.74 : 92,765.50 = 21,849.44 : x
  2. Step 2: Convert to fraction form
    61,838.74/92,765.50 = 21,849.44/x
  3. Step 3: Cross multiply
    61,838.74x = 92,765.50 × 21,849.44
  4. Step 4: Simplify right side
    61,838.74x = 2,026,874,403.61
  5. Step 5: Solve for x
    x = 2,026,874,403.61/61,838.74
  6. Step 6: Final answer
    x = 32,776.78

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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.