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Finding the Fourth Proportional to 35,552.80, 53,314.80 and 12,167.20

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Solution

The fourth proportional to 35,552.80, 53,314.80 and 12,167.20 is: 18,245.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,552.80 : 53,314.80 = 12,167.20 : x
  2. Step 2: Convert to fraction form
    35,552.80/53,314.80 = 12,167.20/x
  3. Step 3: Cross multiply
    35,552.80x = 53,314.80 × 12,167.20
  4. Step 4: Simplify right side
    35,552.80x = 648,691,834.56
  5. Step 5: Solve for x
    x = 648,691,834.56/35,552.80
  6. Step 6: Final answer
    x = 18,245.87

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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.