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Finding the Fourth Proportional to 67,794.30, 101,691.45 and 18,546.30

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Solution

The fourth proportional to 67,794.30, 101,691.45 and 18,546.30 is: 27,819.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,794.30 : 101,691.45 = 18,546.30 : x
  2. Step 2: Convert to fraction form
    67,794.30/101,691.45 = 18,546.30/x
  3. Step 3: Cross multiply
    67,794.30x = 101,691.45 × 18,546.30
  4. Step 4: Simplify right side
    67,794.30x = 1,886,000,139.14
  5. Step 5: Solve for x
    x = 1,886,000,139.14/67,794.30
  6. Step 6: Final answer
    x = 27,819.45

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1.5x scale

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.