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Finding the Fourth Proportional to 5,616.12, 7,752.78 and 5,325.24

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Solution

The fourth proportional to 5,616.12, 7,752.78 and 5,325.24 is: 7,351.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,616.12 : 7,752.78 = 5,325.24 : x
  2. Step 2: Convert to fraction form
    5,616.12/7,752.78 = 5,325.24/x
  3. Step 3: Cross multiply
    5,616.12x = 7,752.78 × 5,325.24
  4. Step 4: Simplify right side
    5,616.12x = 41,285,414.17
  5. Step 5: Solve for x
    x = 41,285,414.17/5,616.12
  6. Step 6: Final answer
    x = 7,351.23

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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.