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Finding the Fourth Proportional to 10,367.70, 15,551.55 and 5,446.95

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Solution

The fourth proportional to 10,367.70, 15,551.55 and 5,446.95 is: 8,170.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,367.70 : 15,551.55 = 5,446.95 : x
  2. Step 2: Convert to fraction form
    10,367.70/15,551.55 = 5,446.95/x
  3. Step 3: Cross multiply
    10,367.70x = 15,551.55 × 5,446.95
  4. Step 4: Simplify right side
    10,367.70x = 84,708,515.27
  5. Step 5: Solve for x
    x = 84,708,515.27/10,367.70
  6. Step 6: Final answer
    x = 8,170.43

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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.