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Finding the Fourth Proportional to 7,882.35, 10,879.88 and 5,525.07

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Solution

The fourth proportional to 7,882.35, 10,879.88 and 5,525.07 is: 7,626.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,882.35 : 10,879.88 = 5,525.07 : x
  2. Step 2: Convert to fraction form
    7,882.35/10,879.88 = 5,525.07/x
  3. Step 3: Cross multiply
    7,882.35x = 10,879.88 × 5,525.07
  4. Step 4: Simplify right side
    7,882.35x = 60,112,070.97
  5. Step 5: Solve for x
    x = 60,112,070.97/7,882.35
  6. Step 6: Final answer
    x = 7,626.16

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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.