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Finding the Fourth Proportional to 4,008.78, 5,532.03 and 2,216.25

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Solution

The fourth proportional to 4,008.78, 5,532.03 and 2,216.25 is: 3,058.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,008.78 : 5,532.03 = 2,216.25 : x
  2. Step 2: Convert to fraction form
    4,008.78/5,532.03 = 2,216.25/x
  3. Step 3: Cross multiply
    4,008.78x = 5,532.03 × 2,216.25
  4. Step 4: Simplify right side
    4,008.78x = 12,260,361.49
  5. Step 5: Solve for x
    x = 12,260,361.49/4,008.78
  6. Step 6: Final answer
    x = 3,058.38

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Half scale
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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.