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Finding the Fourth Proportional to 5,551.84, 7,660.20 and 3,454.48

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Solution

The fourth proportional to 5,551.84, 7,660.20 and 3,454.48 is: 4,766.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,551.84 : 7,660.20 = 3,454.48 : x
  2. Step 2: Convert to fraction form
    5,551.84/7,660.20 = 3,454.48/x
  3. Step 3: Cross multiply
    5,551.84x = 7,660.20 × 3,454.48
  4. Step 4: Simplify right side
    5,551.84x = 26,462,007.70
  5. Step 5: Solve for x
    x = 26,462,007.70/5,551.84
  6. Step 6: Final answer
    x = 4,766.35

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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.