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Finding the Fourth Proportional to 5,445.84, 7,515.18 and 2,961.84

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Solution

The fourth proportional to 5,445.84, 7,515.18 and 2,961.84 is: 4,087.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,445.84 : 7,515.18 = 2,961.84 : x
  2. Step 2: Convert to fraction form
    5,445.84/7,515.18 = 2,961.84/x
  3. Step 3: Cross multiply
    5,445.84x = 7,515.18 × 2,961.84
  4. Step 4: Simplify right side
    5,445.84x = 22,258,760.73
  5. Step 5: Solve for x
    x = 22,258,760.73/5,445.84
  6. Step 6: Final answer
    x = 4,087.30

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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.