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Finding the Fourth Proportional to 17,251.48, 25,878.78 and 7,388.52

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Solution

The fourth proportional to 17,251.48, 25,878.78 and 7,388.52 is: 11,083.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,251.48 : 25,878.78 = 7,388.52 : x
  2. Step 2: Convert to fraction form
    17,251.48/25,878.78 = 7,388.52/x
  3. Step 3: Cross multiply
    17,251.48x = 25,878.78 × 7,388.52
  4. Step 4: Simplify right side
    17,251.48x = 191,205,883.61
  5. Step 5: Solve for x
    x = 191,205,883.61/17,251.48
  6. Step 6: Final answer
    x = 11,083.45

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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.