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Finding the Fourth Proportional to 6,550.76, 9,040.97 and 3,718.83

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Solution

The fourth proportional to 6,550.76, 9,040.97 and 3,718.83 is: 5,132.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,550.76 : 9,040.97 = 3,718.83 : x
  2. Step 2: Convert to fraction form
    6,550.76/9,040.97 = 3,718.83/x
  3. Step 3: Cross multiply
    6,550.76x = 9,040.97 × 3,718.83
  4. Step 4: Simplify right side
    6,550.76x = 33,621,811.87
  5. Step 5: Solve for x
    x = 33,621,811.87/6,550.76
  6. Step 6: Final answer
    x = 5,132.51

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Half scale
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Double scale
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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.