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Finding the Fourth Proportional to 6,144.59, 9,221.59 and 3,185.46

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Solution

The fourth proportional to 6,144.59, 9,221.59 and 3,185.46 is: 4,780.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,144.59 : 9,221.59 = 3,185.46 : x
  2. Step 2: Convert to fraction form
    6,144.59/9,221.59 = 3,185.46/x
  3. Step 3: Cross multiply
    6,144.59x = 9,221.59 × 3,185.46
  4. Step 4: Simplify right side
    6,144.59x = 29,374,959.97
  5. Step 5: Solve for x
    x = 29,374,959.97/6,144.59
  6. Step 6: Final answer
    x = 4,780.63

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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.