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Finding the Fourth Proportional to 8,842.43, 13,244.05 and 5,135.47

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Solution

The fourth proportional to 8,842.43, 13,244.05 and 5,135.47 is: 7,691.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,842.43 : 13,244.05 = 5,135.47 : x
  2. Step 2: Convert to fraction form
    8,842.43/13,244.05 = 5,135.47/x
  3. Step 3: Cross multiply
    8,842.43x = 13,244.05 × 5,135.47
  4. Step 4: Simplify right side
    8,842.43x = 68,014,421.45
  5. Step 5: Solve for x
    x = 68,014,421.45/8,842.43
  6. Step 6: Final answer
    x = 7,691.82

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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.