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Finding the Fourth Proportional to 17,040.91, 25,573.92 and 8,615.56

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Solution

The fourth proportional to 17,040.91, 25,573.92 and 8,615.56 is: 12,929.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,040.91 : 25,573.92 = 8,615.56 : x
  2. Step 2: Convert to fraction form
    17,040.91/25,573.92 = 8,615.56/x
  3. Step 3: Cross multiply
    17,040.91x = 25,573.92 × 8,615.56
  4. Step 4: Simplify right side
    17,040.91x = 220,333,642.20
  5. Step 5: Solve for x
    x = 220,333,642.20/17,040.91
  6. Step 6: Final answer
    x = 12,929.69

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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.