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Finding the Fourth Proportional to 4,787.75, 6,605.48 and 2,797.17

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Solution

The fourth proportional to 4,787.75, 6,605.48 and 2,797.17 is: 3,859.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,787.75 : 6,605.48 = 2,797.17 : x
  2. Step 2: Convert to fraction form
    4,787.75/6,605.48 = 2,797.17/x
  3. Step 3: Cross multiply
    4,787.75x = 6,605.48 × 2,797.17
  4. Step 4: Simplify right side
    4,787.75x = 18,476,660.01
  5. Step 5: Solve for x
    x = 18,476,660.01/4,787.75
  6. Step 6: Final answer
    x = 3,859.16

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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.