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Finding the Fourth Proportional to 17,591.20, 26,329.20 and 13,674.40

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Solution

The fourth proportional to 17,591.20, 26,329.20 and 13,674.40 is: 20,466.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,591.20 : 26,329.20 = 13,674.40 : x
  2. Step 2: Convert to fraction form
    17,591.20/26,329.20 = 13,674.40/x
  3. Step 3: Cross multiply
    17,591.20x = 26,329.20 × 13,674.40
  4. Step 4: Simplify right side
    17,591.20x = 360,036,012.48
  5. Step 5: Solve for x
    x = 360,036,012.48/17,591.20
  6. Step 6: Final answer
    x = 20,466.83

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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.