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Finding the Fourth Proportional to 28,751.38, 43,049.10 and 14,871.22

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Solution

The fourth proportional to 28,751.38, 43,049.10 and 14,871.22 is: 22,266.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,751.38 : 43,049.10 = 14,871.22 : x
  2. Step 2: Convert to fraction form
    28,751.38/43,049.10 = 14,871.22/x
  3. Step 3: Cross multiply
    28,751.38x = 43,049.10 × 14,871.22
  4. Step 4: Simplify right side
    28,751.38x = 640,192,636.90
  5. Step 5: Solve for x
    x = 640,192,636.90/28,751.38
  6. Step 6: Final answer
    x = 22,266.50

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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.