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Finding the Fourth Proportional to 40,449.91, 60,702.20 and 14,154.88

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Solution

The fourth proportional to 40,449.91, 60,702.20 and 14,154.88 is: 21,241.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,449.91 : 60,702.20 = 14,154.88 : x
  2. Step 2: Convert to fraction form
    40,449.91/60,702.20 = 14,154.88/x
  3. Step 3: Cross multiply
    40,449.91x = 60,702.20 × 14,154.88
  4. Step 4: Simplify right side
    40,449.91x = 859,232,356.74
  5. Step 5: Solve for x
    x = 859,232,356.74/40,449.91
  6. Step 6: Final answer
    x = 21,241.89

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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.