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Finding the Fourth Proportional to 19,888.01, 29,824.20 and 7,234.76

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Solution

The fourth proportional to 19,888.01, 29,824.20 and 7,234.76 is: 10,849.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,888.01 : 29,824.20 = 7,234.76 : x
  2. Step 2: Convert to fraction form
    19,888.01/29,824.20 = 7,234.76/x
  3. Step 3: Cross multiply
    19,888.01x = 29,824.20 × 7,234.76
  4. Step 4: Simplify right side
    19,888.01x = 215,770,743.90
  5. Step 5: Solve for x
    x = 215,770,743.90/19,888.01
  6. Step 6: Final answer
    x = 10,849.29

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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.