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Finding the Fourth Proportional to 15,177.79, 22,751.09 and 5,815.27

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Solution

The fourth proportional to 15,177.79, 22,751.09 and 5,815.27 is: 8,716.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,177.79 : 22,751.09 = 5,815.27 : x
  2. Step 2: Convert to fraction form
    15,177.79/22,751.09 = 5,815.27/x
  3. Step 3: Cross multiply
    15,177.79x = 22,751.09 × 5,815.27
  4. Step 4: Simplify right side
    15,177.79x = 132,303,588.31
  5. Step 5: Solve for x
    x = 132,303,588.31/15,177.79
  6. Step 6: Final answer
    x = 8,716.92

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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.