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Finding the Fourth Proportional to 8,974.88, 13,462.85 and 2,818.88

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Solution

The fourth proportional to 8,974.88, 13,462.85 and 2,818.88 is: 4,228.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,974.88 : 13,462.85 = 2,818.88 : x
  2. Step 2: Convert to fraction form
    8,974.88/13,462.85 = 2,818.88/x
  3. Step 3: Cross multiply
    8,974.88x = 13,462.85 × 2,818.88
  4. Step 4: Simplify right side
    8,974.88x = 37,950,098.34
  5. Step 5: Solve for x
    x = 37,950,098.34/8,974.88
  6. Step 6: Final answer
    x = 4,228.48

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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.