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Finding the Fourth Proportional to 19,884.87, 27,440.88 and 10,932.14

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Solution

The fourth proportional to 19,884.87, 27,440.88 and 10,932.14 is: 15,086.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,884.87 : 27,440.88 = 10,932.14 : x
  2. Step 2: Convert to fraction form
    19,884.87/27,440.88 = 10,932.14/x
  3. Step 3: Cross multiply
    19,884.87x = 27,440.88 × 10,932.14
  4. Step 4: Simplify right side
    19,884.87x = 299,987,404.68
  5. Step 5: Solve for x
    x = 299,987,404.68/19,884.87
  6. Step 6: Final answer
    x = 15,086.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.