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Finding the Fourth Proportional to 5,383.62, 7,412.52 and 4,891.53

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Solution

The fourth proportional to 5,383.62, 7,412.52 and 4,891.53 is: 6,734.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,383.62 : 7,412.52 = 4,891.53 : x
  2. Step 2: Convert to fraction form
    5,383.62/7,412.52 = 4,891.53/x
  3. Step 3: Cross multiply
    5,383.62x = 7,412.52 × 4,891.53
  4. Step 4: Simplify right side
    5,383.62x = 36,258,563.96
  5. Step 5: Solve for x
    x = 36,258,563.96/5,383.62
  6. Step 6: Final answer
    x = 6,734.98

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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.