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Finding the Fourth Proportional to 5,759.34, 7,949.19 and 4,078.98

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Solution

The fourth proportional to 5,759.34, 7,949.19 and 4,078.98 is: 5,629.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,759.34 : 7,949.19 = 4,078.98 : x
  2. Step 2: Convert to fraction form
    5,759.34/7,949.19 = 4,078.98/x
  3. Step 3: Cross multiply
    5,759.34x = 7,949.19 × 4,078.98
  4. Step 4: Simplify right side
    5,759.34x = 32,424,587.03
  5. Step 5: Solve for x
    x = 32,424,587.03/5,759.34
  6. Step 6: Final answer
    x = 5,629.91

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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.