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Finding the Fourth Proportional to 8,818.50, 12,169.53 and 5,092.50

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Solution

The fourth proportional to 8,818.50, 12,169.53 and 5,092.50 is: 7,027.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,818.50 : 12,169.53 = 5,092.50 : x
  2. Step 2: Convert to fraction form
    8,818.50/12,169.53 = 5,092.50/x
  3. Step 3: Cross multiply
    8,818.50x = 12,169.53 × 5,092.50
  4. Step 4: Simplify right side
    8,818.50x = 61,973,331.53
  5. Step 5: Solve for x
    x = 61,973,331.53/8,818.50
  6. Step 6: Final answer
    x = 7,027.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.