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Finding the Fourth Proportional to 5,990.58, 8,961.78 and 5,177.58

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Solution

The fourth proportional to 5,990.58, 8,961.78 and 5,177.58 is: 7,745.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,990.58 : 8,961.78 = 5,177.58 : x
  2. Step 2: Convert to fraction form
    5,990.58/8,961.78 = 5,177.58/x
  3. Step 3: Cross multiply
    5,990.58x = 8,961.78 × 5,177.58
  4. Step 4: Simplify right side
    5,990.58x = 46,400,332.89
  5. Step 5: Solve for x
    x = 46,400,332.89/5,990.58
  6. Step 6: Final answer
    x = 7,745.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.