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Finding the Fourth Proportional to 8,367.55, 12,553.60 and 4,672.43

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Solution

The fourth proportional to 8,367.55, 12,553.60 and 4,672.43 is: 7,009.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,367.55 : 12,553.60 = 4,672.43 : x
  2. Step 2: Convert to fraction form
    8,367.55/12,553.60 = 4,672.43/x
  3. Step 3: Cross multiply
    8,367.55x = 12,553.60 × 4,672.43
  4. Step 4: Simplify right side
    8,367.55x = 58,655,817.25
  5. Step 5: Solve for x
    x = 58,655,817.25/8,367.55
  6. Step 6: Final answer
    x = 7,009.92

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1.5x scale

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.