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Finding the Fourth Proportional to 5,755.32, 7,943.25 and 3,518.49

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Solution

The fourth proportional to 5,755.32, 7,943.25 and 3,518.49 is: 4,856.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,755.32 : 7,943.25 = 3,518.49 : x
  2. Step 2: Convert to fraction form
    5,755.32/7,943.25 = 3,518.49/x
  3. Step 3: Cross multiply
    5,755.32x = 7,943.25 × 3,518.49
  4. Step 4: Simplify right side
    5,755.32x = 27,948,245.69
  5. Step 5: Solve for x
    x = 27,948,245.69/5,755.32
  6. Step 6: Final answer
    x = 4,856.07

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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.