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Finding the Fourth Proportional to 9,871.11, 14,803.86 and 2,753.73

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Solution

The fourth proportional to 9,871.11, 14,803.86 and 2,753.73 is: 4,129.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,871.11 : 14,803.86 = 2,753.73 : x
  2. Step 2: Convert to fraction form
    9,871.11/14,803.86 = 2,753.73/x
  3. Step 3: Cross multiply
    9,871.11x = 14,803.86 × 2,753.73
  4. Step 4: Simplify right side
    9,871.11x = 40,765,833.40
  5. Step 5: Solve for x
    x = 40,765,833.40/9,871.11
  6. Step 6: Final answer
    x = 4,129.81

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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.