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Finding the Fourth Proportional to 19,255.25, 28,882.88 and 6,943.25

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Solution

The fourth proportional to 19,255.25, 28,882.88 and 6,943.25 is: 10,414.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,255.25 : 28,882.88 = 6,943.25 : x
  2. Step 2: Convert to fraction form
    19,255.25/28,882.88 = 6,943.25/x
  3. Step 3: Cross multiply
    19,255.25x = 28,882.88 × 6,943.25
  4. Step 4: Simplify right side
    19,255.25x = 200,541,056.56
  5. Step 5: Solve for x
    x = 200,541,056.56/19,255.25
  6. Step 6: Final answer
    x = 10,414.88

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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.