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Finding the Fourth Proportional to 10,798.72, 16,233.92 and 8,865.28

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Solution

The fourth proportional to 10,798.72, 16,233.92 and 8,865.28 is: 13,327.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,798.72 : 16,233.92 = 8,865.28 : x
  2. Step 2: Convert to fraction form
    10,798.72/16,233.92 = 8,865.28/x
  3. Step 3: Cross multiply
    10,798.72x = 16,233.92 × 8,865.28
  4. Step 4: Simplify right side
    10,798.72x = 143,918,246.30
  5. Step 5: Solve for x
    x = 143,918,246.30/10,798.72
  6. Step 6: Final answer
    x = 13,327.34

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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.