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Finding the Fourth Proportional to 67,886.70, 101,844.66 and 20,497.82

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Solution

The fourth proportional to 67,886.70, 101,844.66 and 20,497.82 is: 30,751.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,886.70 : 101,844.66 = 20,497.82 : x
  2. Step 2: Convert to fraction form
    67,886.70/101,844.66 = 20,497.82/x
  3. Step 3: Cross multiply
    67,886.70x = 101,844.66 × 20,497.82
  4. Step 4: Simplify right side
    67,886.70x = 2,087,593,508.64
  5. Step 5: Solve for x
    x = 2,087,593,508.64/67,886.70
  6. Step 6: Final answer
    x = 30,751.14

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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.