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Finding the Fourth Proportional to 18,627.71, 27,959.12 and 6,792.92

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Solution

The fourth proportional to 18,627.71, 27,959.12 and 6,792.92 is: 10,195.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,627.71 : 27,959.12 = 6,792.92 : x
  2. Step 2: Convert to fraction form
    18,627.71/27,959.12 = 6,792.92/x
  3. Step 3: Cross multiply
    18,627.71x = 27,959.12 × 6,792.92
  4. Step 4: Simplify right side
    18,627.71x = 189,924,065.43
  5. Step 5: Solve for x
    x = 189,924,065.43/18,627.71
  6. Step 6: Final answer
    x = 10,195.78

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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.