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Finding the Fourth Proportional to 27,047.65, 40,542.72 and 15,959.56

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Solution

The fourth proportional to 27,047.65, 40,542.72 and 15,959.56 is: 23,922.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,047.65 : 40,542.72 = 15,959.56 : x
  2. Step 2: Convert to fraction form
    27,047.65/40,542.72 = 15,959.56/x
  3. Step 3: Cross multiply
    27,047.65x = 40,542.72 × 15,959.56
  4. Step 4: Simplify right side
    27,047.65x = 647,043,972.40
  5. Step 5: Solve for x
    x = 647,043,972.40/27,047.65
  6. Step 6: Final answer
    x = 23,922.37

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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.