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Finding the Fourth Proportional to 10,517.36, 14,514 and 5,801.78

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Solution

The fourth proportional to 10,517.36, 14,514 and 5,801.78 is: 8,006.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,517.36 : 14,514 = 5,801.78 : x
  2. Step 2: Convert to fraction form
    10,517.36/14,514 = 5,801.78/x
  3. Step 3: Cross multiply
    10,517.36x = 14,514 × 5,801.78
  4. Step 4: Simplify right side
    10,517.36x = 84,207,034.92
  5. Step 5: Solve for x
    x = 84,207,034.92/10,517.36
  6. Step 6: Final answer
    x = 8,006.48

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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.