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Finding the Fourth Proportional to 3,965.51, 5,472.24 and 2,197.01

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Solution

The fourth proportional to 3,965.51, 5,472.24 and 2,197.01 is: 3,031.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,965.51 : 5,472.24 = 2,197.01 : x
  2. Step 2: Convert to fraction form
    3,965.51/5,472.24 = 2,197.01/x
  3. Step 3: Cross multiply
    3,965.51x = 5,472.24 × 2,197.01
  4. Step 4: Simplify right side
    3,965.51x = 12,022,566.00
  5. Step 5: Solve for x
    x = 12,022,566.00/3,965.51
  6. Step 6: Final answer
    x = 3,031.78

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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.