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Finding the Fourth Proportional to 17,811.20, 26,722.20 and 10,014.80

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Solution

The fourth proportional to 17,811.20, 26,722.20 and 10,014.80 is: 15,025.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,811.20 : 26,722.20 = 10,014.80 : x
  2. Step 2: Convert to fraction form
    17,811.20/26,722.20 = 10,014.80/x
  3. Step 3: Cross multiply
    17,811.20x = 26,722.20 × 10,014.80
  4. Step 4: Simplify right side
    17,811.20x = 267,617,488.56
  5. Step 5: Solve for x
    x = 267,617,488.56/17,811.20
  6. Step 6: Final answer
    x = 15,025.24

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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.