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Finding the Fourth Proportional to 42,544.88, 63,809.79 and 15,884.88

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Solution

The fourth proportional to 42,544.88, 63,809.79 and 15,884.88 is: 23,824.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,544.88 : 63,809.79 = 15,884.88 : x
  2. Step 2: Convert to fraction form
    42,544.88/63,809.79 = 15,884.88/x
  3. Step 3: Cross multiply
    42,544.88x = 63,809.79 × 15,884.88
  4. Step 4: Simplify right side
    42,544.88x = 1,013,610,856.98
  5. Step 5: Solve for x
    x = 1,013,610,856.98/42,544.88
  6. Step 6: Final answer
    x = 23,824.51

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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.