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Finding the Fourth Proportional to 3,965.52, 5,474.16 and 2,393.28

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Solution

The fourth proportional to 3,965.52, 5,474.16 and 2,393.28 is: 3,303.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,965.52 : 5,474.16 = 2,393.28 : x
  2. Step 2: Convert to fraction form
    3,965.52/5,474.16 = 2,393.28/x
  3. Step 3: Cross multiply
    3,965.52x = 5,474.16 × 2,393.28
  4. Step 4: Simplify right side
    3,965.52x = 13,101,197.64
  5. Step 5: Solve for x
    x = 13,101,197.64/3,965.52
  6. Step 6: Final answer
    x = 3,303.78

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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.