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Finding the Fourth Proportional to 39,260, 54,179.34 and 22,493

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Solution

The fourth proportional to 39,260, 54,179.34 and 22,493 is: 31,040.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,260 : 54,179.34 = 22,493 : x
  2. Step 2: Convert to fraction form
    39,260/54,179.34 = 22,493/x
  3. Step 3: Cross multiply
    39,260x = 54,179.34 × 22,493
  4. Step 4: Simplify right side
    39,260x = 1,218,655,894.62
  5. Step 5: Solve for x
    x = 1,218,655,894.62/39,260
  6. Step 6: Final answer
    x = 31,040.65

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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.