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Finding the Fourth Proportional to 19,954.72, 29,932.08 and 7,474.24

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Solution

The fourth proportional to 19,954.72, 29,932.08 and 7,474.24 is: 11,211.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,954.72 : 29,932.08 = 7,474.24 : x
  2. Step 2: Convert to fraction form
    19,954.72/29,932.08 = 7,474.24/x
  3. Step 3: Cross multiply
    19,954.72x = 29,932.08 × 7,474.24
  4. Step 4: Simplify right side
    19,954.72x = 223,719,549.62
  5. Step 5: Solve for x
    x = 223,719,549.62/19,954.72
  6. Step 6: Final answer
    x = 11,211.36

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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.