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Finding the Fourth Proportional to 18,752.03, 28,141.88 and 8,891.33

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Solution

The fourth proportional to 18,752.03, 28,141.88 and 8,891.33 is: 13,343.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,752.03 : 28,141.88 = 8,891.33 : x
  2. Step 2: Convert to fraction form
    18,752.03/28,141.88 = 8,891.33/x
  3. Step 3: Cross multiply
    18,752.03x = 28,141.88 × 8,891.33
  4. Step 4: Simplify right side
    18,752.03x = 250,218,556.73
  5. Step 5: Solve for x
    x = 250,218,556.73/18,752.03
  6. Step 6: Final answer
    x = 13,343.55

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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.