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Finding the Fourth Proportional to 5,699.88, 8,555.34 and 3,512.88

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Solution

The fourth proportional to 5,699.88, 8,555.34 and 3,512.88 is: 5,272.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,699.88 : 8,555.34 = 3,512.88 : x
  2. Step 2: Convert to fraction form
    5,699.88/8,555.34 = 3,512.88/x
  3. Step 3: Cross multiply
    5,699.88x = 8,555.34 × 3,512.88
  4. Step 4: Simplify right side
    5,699.88x = 30,053,882.78
  5. Step 5: Solve for x
    x = 30,053,882.78/5,699.88
  6. Step 6: Final answer
    x = 5,272.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.