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Finding the Fourth Proportional to 6,632.76, 9,148.49 and 5,494.84

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Solution

The fourth proportional to 6,632.76, 9,148.49 and 5,494.84 is: 7,578.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,632.76 : 9,148.49 = 5,494.84 : x
  2. Step 2: Convert to fraction form
    6,632.76/9,148.49 = 5,494.84/x
  3. Step 3: Cross multiply
    6,632.76x = 9,148.49 × 5,494.84
  4. Step 4: Simplify right side
    6,632.76x = 50,269,489.96
  5. Step 5: Solve for x
    x = 50,269,489.96/6,632.76
  6. Step 6: Final answer
    x = 7,578.97

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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.