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Finding the Fourth Proportional to 8,873.63, 13,311.78 and 2,867.70

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Solution

The fourth proportional to 8,873.63, 13,311.78 and 2,867.70 is: 4,301.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,873.63 : 13,311.78 = 2,867.70 : x
  2. Step 2: Convert to fraction form
    8,873.63/13,311.78 = 2,867.70/x
  3. Step 3: Cross multiply
    8,873.63x = 13,311.78 × 2,867.70
  4. Step 4: Simplify right side
    8,873.63x = 38,174,230.67
  5. Step 5: Solve for x
    x = 38,174,230.67/8,873.63
  6. Step 6: Final answer
    x = 4,301.98

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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.