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Finding the Fourth Proportional to 19,224.80, 28,837.20 and 17,151.20

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Solution

The fourth proportional to 19,224.80, 28,837.20 and 17,151.20 is: 25,726.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,224.80 : 28,837.20 = 17,151.20 : x
  2. Step 2: Convert to fraction form
    19,224.80/28,837.20 = 17,151.20/x
  3. Step 3: Cross multiply
    19,224.80x = 28,837.20 × 17,151.20
  4. Step 4: Simplify right side
    19,224.80x = 494,592,584.64
  5. Step 5: Solve for x
    x = 494,592,584.64/19,224.80
  6. Step 6: Final answer
    x = 25,726.80

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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.