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Finding the Fourth Proportional to 27,283.92, 40,921.83 and 7,560.42

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Solution

The fourth proportional to 27,283.92, 40,921.83 and 7,560.42 is: 11,339.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,283.92 : 40,921.83 = 7,560.42 : x
  2. Step 2: Convert to fraction form
    27,283.92/40,921.83 = 7,560.42/x
  3. Step 3: Cross multiply
    27,283.92x = 40,921.83 × 7,560.42
  4. Step 4: Simplify right side
    27,283.92x = 309,386,221.97
  5. Step 5: Solve for x
    x = 309,386,221.97/27,283.92
  6. Step 6: Final answer
    x = 11,339.51

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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.