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Finding the Fourth Proportional to 8,608.75, 11,880.08 and 4,882.75

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Solution

The fourth proportional to 8,608.75, 11,880.08 and 4,882.75 is: 6,738.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,608.75 : 11,880.08 = 4,882.75 : x
  2. Step 2: Convert to fraction form
    8,608.75/11,880.08 = 4,882.75/x
  3. Step 3: Cross multiply
    8,608.75x = 11,880.08 × 4,882.75
  4. Step 4: Simplify right side
    8,608.75x = 58,007,460.62
  5. Step 5: Solve for x
    x = 58,007,460.62/8,608.75
  6. Step 6: Final answer
    x = 6,738.20

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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.