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Finding the Fourth Proportional to 3,602.70, 5,391.18 and 2,216.34

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Solution

The fourth proportional to 3,602.70, 5,391.18 and 2,216.34 is: 3,316.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,602.70 : 5,391.18 = 2,216.34 : x
  2. Step 2: Convert to fraction form
    3,602.70/5,391.18 = 2,216.34/x
  3. Step 3: Cross multiply
    3,602.70x = 5,391.18 × 2,216.34
  4. Step 4: Simplify right side
    3,602.70x = 11,948,687.88
  5. Step 5: Solve for x
    x = 11,948,687.88/3,602.70
  6. Step 6: Final answer
    x = 3,316.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.