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Finding the Fourth Proportional to 30,679.64, 42,358.92 and 23,496.92

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Solution

The fourth proportional to 30,679.64, 42,358.92 and 23,496.92 is: 32,441.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,679.64 : 42,358.92 = 23,496.92 : x
  2. Step 2: Convert to fraction form
    30,679.64/42,358.92 = 23,496.92/x
  3. Step 3: Cross multiply
    30,679.64x = 42,358.92 × 23,496.92
  4. Step 4: Simplify right side
    30,679.64x = 995,304,154.53
  5. Step 5: Solve for x
    x = 995,304,154.53/30,679.64
  6. Step 6: Final answer
    x = 32,441.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.