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Finding the Fourth Proportional to 18,422.92, 27,613.72 and 7,326.63

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Solution

The fourth proportional to 18,422.92, 27,613.72 and 7,326.63 is: 10,981.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,422.92 : 27,613.72 = 7,326.63 : x
  2. Step 2: Convert to fraction form
    18,422.92/27,613.72 = 7,326.63/x
  3. Step 3: Cross multiply
    18,422.92x = 27,613.72 × 7,326.63
  4. Step 4: Simplify right side
    18,422.92x = 202,315,518.52
  5. Step 5: Solve for x
    x = 202,315,518.52/18,422.92
  6. Step 6: Final answer
    x = 10,981.73

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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.