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Finding the Fourth Proportional to 34,691.54, 51,990.69 and 18,016.88

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Solution

The fourth proportional to 34,691.54, 51,990.69 and 18,016.88 is: 27,001.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,691.54 : 51,990.69 = 18,016.88 : x
  2. Step 2: Convert to fraction form
    34,691.54/51,990.69 = 18,016.88/x
  3. Step 3: Cross multiply
    34,691.54x = 51,990.69 × 18,016.88
  4. Step 4: Simplify right side
    34,691.54x = 936,710,022.85
  5. Step 5: Solve for x
    x = 936,710,022.85/34,691.54
  6. Step 6: Final answer
    x = 27,001.11

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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.