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Finding the Fourth Proportional to 6,146.56, 9,213 and 2,447.80

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Solution

The fourth proportional to 6,146.56, 9,213 and 2,447.80 is: 3,668.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,146.56 : 9,213 = 2,447.80 : x
  2. Step 2: Convert to fraction form
    6,146.56/9,213 = 2,447.80/x
  3. Step 3: Cross multiply
    6,146.56x = 9,213 × 2,447.80
  4. Step 4: Simplify right side
    6,146.56x = 22,551,581.40
  5. Step 5: Solve for x
    x = 22,551,581.40/6,146.56
  6. Step 6: Final answer
    x = 3,668.98

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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.