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Finding the Fourth Proportional to 3,965.16, 5,474.58 and 3,544.16

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Solution

The fourth proportional to 3,965.16, 5,474.58 and 3,544.16 is: 4,893.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,965.16 : 5,474.58 = 3,544.16 : x
  2. Step 2: Convert to fraction form
    3,965.16/5,474.58 = 3,544.16/x
  3. Step 3: Cross multiply
    3,965.16x = 5,474.58 × 3,544.16
  4. Step 4: Simplify right side
    3,965.16x = 19,402,787.45
  5. Step 5: Solve for x
    x = 19,402,787.45/3,965.16
  6. Step 6: Final answer
    x = 4,893.32

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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.