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Finding the Fourth Proportional to 17,871.52, 26,796.48 and 8,514.40

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Solution

The fourth proportional to 17,871.52, 26,796.48 and 8,514.40 is: 12,766.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,871.52 : 26,796.48 = 8,514.40 : x
  2. Step 2: Convert to fraction form
    17,871.52/26,796.48 = 8,514.40/x
  3. Step 3: Cross multiply
    17,871.52x = 26,796.48 × 8,514.40
  4. Step 4: Simplify right side
    17,871.52x = 228,155,949.31
  5. Step 5: Solve for x
    x = 228,155,949.31/17,871.52
  6. Step 6: Final answer
    x = 12,766.45

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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.