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Finding the Fourth Proportional to 27,243.71, 40,865.48 and 7,253.20

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Solution

The fourth proportional to 27,243.71, 40,865.48 and 7,253.20 is: 10,879.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,243.71 : 40,865.48 = 7,253.20 : x
  2. Step 2: Convert to fraction form
    27,243.71/40,865.48 = 7,253.20/x
  3. Step 3: Cross multiply
    27,243.71x = 40,865.48 × 7,253.20
  4. Step 4: Simplify right side
    27,243.71x = 296,405,541.55
  5. Step 5: Solve for x
    x = 296,405,541.55/27,243.71
  6. Step 6: Final answer
    x = 10,879.78

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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.