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Finding the Fourth Proportional to 10,051.11, 15,079.19 and 8,789.94

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Solution

The fourth proportional to 10,051.11, 15,079.19 and 8,789.94 is: 13,187.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,051.11 : 15,079.19 = 8,789.94 : x
  2. Step 2: Convert to fraction form
    10,051.11/15,079.19 = 8,789.94/x
  3. Step 3: Cross multiply
    10,051.11x = 15,079.19 × 8,789.94
  4. Step 4: Simplify right side
    10,051.11x = 132,545,131.40
  5. Step 5: Solve for x
    x = 132,545,131.40/10,051.11
  6. Step 6: Final answer
    x = 13,187.11

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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.