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Finding the Fourth Proportional to 5,472.55, 7,550.22 and 3,319.78

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Solution

The fourth proportional to 5,472.55, 7,550.22 and 3,319.78 is: 4,580.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,472.55 : 7,550.22 = 3,319.78 : x
  2. Step 2: Convert to fraction form
    5,472.55/7,550.22 = 3,319.78/x
  3. Step 3: Cross multiply
    5,472.55x = 7,550.22 × 3,319.78
  4. Step 4: Simplify right side
    5,472.55x = 25,065,069.35
  5. Step 5: Solve for x
    x = 25,065,069.35/5,472.55
  6. Step 6: Final answer
    x = 4,580.14

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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.