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Finding the Fourth Proportional to 73,127, 109,691.10 and 17,723

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Solution

The fourth proportional to 73,127, 109,691.10 and 17,723 is: 26,584.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,127 : 109,691.10 = 17,723 : x
  2. Step 2: Convert to fraction form
    73,127/109,691.10 = 17,723/x
  3. Step 3: Cross multiply
    73,127x = 109,691.10 × 17,723
  4. Step 4: Simplify right side
    73,127x = 1,944,055,365.30
  5. Step 5: Solve for x
    x = 1,944,055,365.30/73,127
  6. Step 6: Final answer
    x = 26,584.65

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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.