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Finding the Fourth Proportional to 6,738.99, 9,298.68 and 3,754.74

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Solution

The fourth proportional to 6,738.99, 9,298.68 and 3,754.74 is: 5,180.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,738.99 : 9,298.68 = 3,754.74 : x
  2. Step 2: Convert to fraction form
    6,738.99/9,298.68 = 3,754.74/x
  3. Step 3: Cross multiply
    6,738.99x = 9,298.68 × 3,754.74
  4. Step 4: Simplify right side
    6,738.99x = 34,914,125.74
  5. Step 5: Solve for x
    x = 34,914,125.74/6,738.99
  6. Step 6: Final answer
    x = 5,180.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.