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Finding the Fourth Proportional to 18,652.16, 25,739.16 and 10,693.92

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Solution

The fourth proportional to 18,652.16, 25,739.16 and 10,693.92 is: 14,757.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,652.16 : 25,739.16 = 10,693.92 : x
  2. Step 2: Convert to fraction form
    18,652.16/25,739.16 = 10,693.92/x
  3. Step 3: Cross multiply
    18,652.16x = 25,739.16 × 10,693.92
  4. Step 4: Simplify right side
    18,652.16x = 275,252,517.91
  5. Step 5: Solve for x
    x = 275,252,517.91/18,652.16
  6. Step 6: Final answer
    x = 14,757.14

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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.