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Finding the Fourth Proportional to 67,659.44, 101,479.08 and 17,740.40

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Solution

The fourth proportional to 67,659.44, 101,479.08 and 17,740.40 is: 26,607.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,659.44 : 101,479.08 = 17,740.40 : x
  2. Step 2: Convert to fraction form
    67,659.44/101,479.08 = 17,740.40/x
  3. Step 3: Cross multiply
    67,659.44x = 101,479.08 × 17,740.40
  4. Step 4: Simplify right side
    67,659.44x = 1,800,279,470.83
  5. Step 5: Solve for x
    x = 1,800,279,470.83/67,659.44
  6. Step 6: Final answer
    x = 26,607.96

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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.