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Finding the Fourth Proportional to 5,778.58, 7,974.43 and 3,125.99

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Solution

The fourth proportional to 5,778.58, 7,974.43 and 3,125.99 is: 4,313.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,778.58 : 7,974.43 = 3,125.99 : x
  2. Step 2: Convert to fraction form
    5,778.58/7,974.43 = 3,125.99/x
  3. Step 3: Cross multiply
    5,778.58x = 7,974.43 × 3,125.99
  4. Step 4: Simplify right side
    5,778.58x = 24,927,970.97
  5. Step 5: Solve for x
    x = 24,927,970.97/5,778.58
  6. Step 6: Final answer
    x = 4,313.86

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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.