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Finding the Fourth Proportional to 5,759.84, 7,949.88 and 4,079.48

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Solution

The fourth proportional to 5,759.84, 7,949.88 and 4,079.48 is: 5,630.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,759.84 : 7,949.88 = 4,079.48 : x
  2. Step 2: Convert to fraction form
    5,759.84/7,949.88 = 4,079.48/x
  3. Step 3: Cross multiply
    5,759.84x = 7,949.88 × 4,079.48
  4. Step 4: Simplify right side
    5,759.84x = 32,431,376.46
  5. Step 5: Solve for x
    x = 32,431,376.46/5,759.84
  6. Step 6: Final answer
    x = 5,630.60

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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.