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Finding the Fourth Proportional to 18,275.44, 27,424.43 and 7,180.17

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Solution

The fourth proportional to 18,275.44, 27,424.43 and 7,180.17 is: 10,774.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,275.44 : 27,424.43 = 7,180.17 : x
  2. Step 2: Convert to fraction form
    18,275.44/27,424.43 = 7,180.17/x
  3. Step 3: Cross multiply
    18,275.44x = 27,424.43 × 7,180.17
  4. Step 4: Simplify right side
    18,275.44x = 196,912,069.55
  5. Step 5: Solve for x
    x = 196,912,069.55/18,275.44
  6. Step 6: Final answer
    x = 10,774.68

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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.