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Finding the Fourth Proportional to 67,438.13, 101,162.05 and 25,885.13

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Solution

The fourth proportional to 67,438.13, 101,162.05 and 25,885.13 is: 38,829.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,438.13 : 101,162.05 = 25,885.13 : x
  2. Step 2: Convert to fraction form
    67,438.13/101,162.05 = 25,885.13/x
  3. Step 3: Cross multiply
    67,438.13x = 101,162.05 × 25,885.13
  4. Step 4: Simplify right side
    67,438.13x = 2,618,592,815.32
  5. Step 5: Solve for x
    x = 2,618,592,815.32/67,438.13
  6. Step 6: Final answer
    x = 38,829.56

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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.