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Finding the Fourth Proportional to 67,778.76, 101,670.96 and 25,654.70

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Solution

The fourth proportional to 67,778.76, 101,670.96 and 25,654.70 is: 38,483.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,778.76 : 101,670.96 = 25,654.70 : x
  2. Step 2: Convert to fraction form
    67,778.76/101,670.96 = 25,654.70/x
  3. Step 3: Cross multiply
    67,778.76x = 101,670.96 × 25,654.70
  4. Step 4: Simplify right side
    67,778.76x = 2,608,337,977.51
  5. Step 5: Solve for x
    x = 2,608,337,977.51/67,778.76
  6. Step 6: Final answer
    x = 38,483.12

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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.