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Finding the Fourth Proportional to 7,882.74, 10,878.14 and 4,525.92

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Solution

The fourth proportional to 7,882.74, 10,878.14 and 4,525.92 is: 6,245.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,882.74 : 10,878.14 = 4,525.92 : x
  2. Step 2: Convert to fraction form
    7,882.74/10,878.14 = 4,525.92/x
  3. Step 3: Cross multiply
    7,882.74x = 10,878.14 × 4,525.92
  4. Step 4: Simplify right side
    7,882.74x = 49,233,591.39
  5. Step 5: Solve for x
    x = 49,233,591.39/7,882.74
  6. Step 6: Final answer
    x = 6,245.75

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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.