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Finding the Fourth Proportional to 54,488.64, 81,715.68 and 17,544

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Solution

The fourth proportional to 54,488.64, 81,715.68 and 17,544 is: 26,310.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,488.64 : 81,715.68 = 17,544 : x
  2. Step 2: Convert to fraction form
    54,488.64/81,715.68 = 17,544/x
  3. Step 3: Cross multiply
    54,488.64x = 81,715.68 × 17,544
  4. Step 4: Simplify right side
    54,488.64x = 1,433,619,889.92
  5. Step 5: Solve for x
    x = 1,433,619,889.92/54,488.64
  6. Step 6: Final answer
    x = 26,310.44

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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.