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Finding the Fourth Proportional to 8,608.84, 11,882.72 and 5,625.16

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Solution

The fourth proportional to 8,608.84, 11,882.72 and 5,625.16 is: 7,764.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,608.84 : 11,882.72 = 5,625.16 : x
  2. Step 2: Convert to fraction form
    8,608.84/11,882.72 = 5,625.16/x
  3. Step 3: Cross multiply
    8,608.84x = 11,882.72 × 5,625.16
  4. Step 4: Simplify right side
    8,608.84x = 66,842,201.24
  5. Step 5: Solve for x
    x = 66,842,201.24/8,608.84
  6. Step 6: Final answer
    x = 7,764.37

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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.