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Finding the Fourth Proportional to 22,828.80, 34,243.20 and 10,540.80

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Solution

The fourth proportional to 22,828.80, 34,243.20 and 10,540.80 is: 15,811.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,828.80 : 34,243.20 = 10,540.80 : x
  2. Step 2: Convert to fraction form
    22,828.80/34,243.20 = 10,540.80/x
  3. Step 3: Cross multiply
    22,828.80x = 34,243.20 × 10,540.80
  4. Step 4: Simplify right side
    22,828.80x = 360,950,722.56
  5. Step 5: Solve for x
    x = 360,950,722.56/22,828.80
  6. Step 6: Final answer
    x = 15,811.20

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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.