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Finding the Fourth Proportional to 17,766.48, 26,649.68 and 7,240.88

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Solution

The fourth proportional to 17,766.48, 26,649.68 and 7,240.88 is: 10,861.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,766.48 : 26,649.68 = 7,240.88 : x
  2. Step 2: Convert to fraction form
    17,766.48/26,649.68 = 7,240.88/x
  3. Step 3: Cross multiply
    17,766.48x = 26,649.68 × 7,240.88
  4. Step 4: Simplify right side
    17,766.48x = 192,967,134.92
  5. Step 5: Solve for x
    x = 192,967,134.92/17,766.48
  6. Step 6: Final answer
    x = 10,861.30

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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.