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Finding the Fourth Proportional to 8,750.55, 13,112.11 and 3,482.71

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Solution

The fourth proportional to 8,750.55, 13,112.11 and 3,482.71 is: 5,218.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,750.55 : 13,112.11 = 3,482.71 : x
  2. Step 2: Convert to fraction form
    8,750.55/13,112.11 = 3,482.71/x
  3. Step 3: Cross multiply
    8,750.55x = 13,112.11 × 3,482.71
  4. Step 4: Simplify right side
    8,750.55x = 45,665,676.62
  5. Step 5: Solve for x
    x = 45,665,676.62/8,750.55
  6. Step 6: Final answer
    x = 5,218.61

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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.