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Finding the Fourth Proportional to 16,760.66, 25,129.02 and 7,871.02

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Solution

The fourth proportional to 16,760.66, 25,129.02 and 7,871.02 is: 11,800.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,760.66 : 25,129.02 = 7,871.02 : x
  2. Step 2: Convert to fraction form
    16,760.66/25,129.02 = 7,871.02/x
  3. Step 3: Cross multiply
    16,760.66x = 25,129.02 × 7,871.02
  4. Step 4: Simplify right side
    16,760.66x = 197,791,019.00
  5. Step 5: Solve for x
    x = 197,791,019.00/16,760.66
  6. Step 6: Final answer
    x = 11,800.91

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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.