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Finding the Fourth Proportional to 61,347.58, 91,991.30 and 36,380.95

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Solution

The fourth proportional to 61,347.58, 91,991.30 and 36,380.95 is: 54,553.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,347.58 : 91,991.30 = 36,380.95 : x
  2. Step 2: Convert to fraction form
    61,347.58/91,991.30 = 36,380.95/x
  3. Step 3: Cross multiply
    61,347.58x = 91,991.30 × 36,380.95
  4. Step 4: Simplify right side
    61,347.58x = 3,346,730,473.85
  5. Step 5: Solve for x
    x = 3,346,730,473.85/61,347.58
  6. Step 6: Final answer
    x = 54,553.59

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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.