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Finding the Fourth Proportional to 8,948.49, 12,349.31 and 4,969.97

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Solution

The fourth proportional to 8,948.49, 12,349.31 and 4,969.97 is: 6,858.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,948.49 : 12,349.31 = 4,969.97 : x
  2. Step 2: Convert to fraction form
    8,948.49/12,349.31 = 4,969.97/x
  3. Step 3: Cross multiply
    8,948.49x = 12,349.31 × 4,969.97
  4. Step 4: Simplify right side
    8,948.49x = 61,375,757.36
  5. Step 5: Solve for x
    x = 61,375,757.36/8,948.49
  6. Step 6: Final answer
    x = 6,858.78

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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.