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Finding the Fourth Proportional to 6,370.74, 8,784.90 and 4,481.70

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Solution

The fourth proportional to 6,370.74, 8,784.90 and 4,481.70 is: 6,180.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,370.74 : 8,784.90 = 4,481.70 : x
  2. Step 2: Convert to fraction form
    6,370.74/8,784.90 = 4,481.70/x
  3. Step 3: Cross multiply
    6,370.74x = 8,784.90 × 4,481.70
  4. Step 4: Simplify right side
    6,370.74x = 39,371,286.33
  5. Step 5: Solve for x
    x = 39,371,286.33/6,370.74
  6. Step 6: Final answer
    x = 6,180.02

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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.