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Finding the Fourth Proportional to 28,224.17, 38,949.03 and 16,287.25

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Solution

The fourth proportional to 28,224.17, 38,949.03 and 16,287.25 is: 22,476.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,224.17 : 38,949.03 = 16,287.25 : x
  2. Step 2: Convert to fraction form
    28,224.17/38,949.03 = 16,287.25/x
  3. Step 3: Cross multiply
    28,224.17x = 38,949.03 × 16,287.25
  4. Step 4: Simplify right side
    28,224.17x = 634,372,357.39
  5. Step 5: Solve for x
    x = 634,372,357.39/28,224.17
  6. Step 6: Final answer
    x = 22,476.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.