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Finding the Fourth Proportional to 17,242.68, 25,864.20 and 13,801.80

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Solution

The fourth proportional to 17,242.68, 25,864.20 and 13,801.80 is: 20,702.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,242.68 : 25,864.20 = 13,801.80 : x
  2. Step 2: Convert to fraction form
    17,242.68/25,864.20 = 13,801.80/x
  3. Step 3: Cross multiply
    17,242.68x = 25,864.20 × 13,801.80
  4. Step 4: Simplify right side
    17,242.68x = 356,972,515.56
  5. Step 5: Solve for x
    x = 356,972,515.56/17,242.68
  6. Step 6: Final answer
    x = 20,702.84

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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.