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Finding the Fourth Proportional to 16,660.64, 25,003.24 and 7,895.54

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Solution

The fourth proportional to 16,660.64, 25,003.24 and 7,895.54 is: 11,849.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,660.64 : 25,003.24 = 7,895.54 : x
  2. Step 2: Convert to fraction form
    16,660.64/25,003.24 = 7,895.54/x
  3. Step 3: Cross multiply
    16,660.64x = 25,003.24 × 7,895.54
  4. Step 4: Simplify right side
    16,660.64x = 197,414,081.55
  5. Step 5: Solve for x
    x = 197,414,081.55/16,660.64
  6. Step 6: Final answer
    x = 11,849.13

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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.