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Finding the Fourth Proportional to 7,882.92, 10,878.51 and 4,346.26

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Solution

The fourth proportional to 7,882.92, 10,878.51 and 4,346.26 is: 5,997.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,882.92 : 10,878.51 = 4,346.26 : x
  2. Step 2: Convert to fraction form
    7,882.92/10,878.51 = 4,346.26/x
  3. Step 3: Cross multiply
    7,882.92x = 10,878.51 × 4,346.26
  4. Step 4: Simplify right side
    7,882.92x = 47,280,809.75
  5. Step 5: Solve for x
    x = 47,280,809.75/7,882.92
  6. Step 6: Final answer
    x = 5,997.88

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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.