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Finding the Fourth Proportional to 18,974.25, 26,182.47 and 11,014.92

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Solution

The fourth proportional to 18,974.25, 26,182.47 and 11,014.92 is: 15,199.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,974.25 : 26,182.47 = 11,014.92 : x
  2. Step 2: Convert to fraction form
    18,974.25/26,182.47 = 11,014.92/x
  3. Step 3: Cross multiply
    18,974.25x = 26,182.47 × 11,014.92
  4. Step 4: Simplify right side
    18,974.25x = 288,397,681.54
  5. Step 5: Solve for x
    x = 288,397,681.54/18,974.25
  6. Step 6: Final answer
    x = 15,199.43

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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.