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Finding the Fourth Proportional to 8,667.63, 13,000.05 and 2,427

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Solution

The fourth proportional to 8,667.63, 13,000.05 and 2,427 is: 3,640.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,667.63 : 13,000.05 = 2,427 : x
  2. Step 2: Convert to fraction form
    8,667.63/13,000.05 = 2,427/x
  3. Step 3: Cross multiply
    8,667.63x = 13,000.05 × 2,427
  4. Step 4: Simplify right side
    8,667.63x = 31,551,121.35
  5. Step 5: Solve for x
    x = 31,551,121.35/8,667.63
  6. Step 6: Final answer
    x = 3,640.11

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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.