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Finding the Fourth Proportional to 34,751.10, 52,167.15 and 18,129.90

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Solution

The fourth proportional to 34,751.10, 52,167.15 and 18,129.90 is: 27,215.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,751.10 : 52,167.15 = 18,129.90 : x
  2. Step 2: Convert to fraction form
    34,751.10/52,167.15 = 18,129.90/x
  3. Step 3: Cross multiply
    34,751.10x = 52,167.15 × 18,129.90
  4. Step 4: Simplify right side
    34,751.10x = 945,785,212.79
  5. Step 5: Solve for x
    x = 945,785,212.79/34,751.10
  6. Step 6: Final answer
    x = 27,215.98

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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.