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Finding the Fourth Proportional to 5,449.57, 7,530.62 and 4,454.48

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Solution

The fourth proportional to 5,449.57, 7,530.62 and 4,454.48 is: 6,155.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,449.57 : 7,530.62 = 4,454.48 : x
  2. Step 2: Convert to fraction form
    5,449.57/7,530.62 = 4,454.48/x
  3. Step 3: Cross multiply
    5,449.57x = 7,530.62 × 4,454.48
  4. Step 4: Simplify right side
    5,449.57x = 33,544,996.18
  5. Step 5: Solve for x
    x = 33,544,996.18/5,449.57
  6. Step 6: Final answer
    x = 6,155.53

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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.