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Finding the Fourth Proportional to 18,524.60, 27,790.88 and 10,630.76

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Solution

The fourth proportional to 18,524.60, 27,790.88 and 10,630.76 is: 15,948.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,524.60 : 27,790.88 = 10,630.76 : x
  2. Step 2: Convert to fraction form
    18,524.60/27,790.88 = 10,630.76/x
  3. Step 3: Cross multiply
    18,524.60x = 27,790.88 × 10,630.76
  4. Step 4: Simplify right side
    18,524.60x = 295,438,175.47
  5. Step 5: Solve for x
    x = 295,438,175.47/18,524.60
  6. Step 6: Final answer
    x = 15,948.42

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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.