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Finding the Fourth Proportional to 12,290.39, 16,960.97 and 6,701.39

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Solution

The fourth proportional to 12,290.39, 16,960.97 and 6,701.39 is: 9,248.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,290.39 : 16,960.97 = 6,701.39 : x
  2. Step 2: Convert to fraction form
    12,290.39/16,960.97 = 6,701.39/x
  3. Step 3: Cross multiply
    12,290.39x = 16,960.97 × 6,701.39
  4. Step 4: Simplify right side
    12,290.39x = 113,662,006.70
  5. Step 5: Solve for x
    x = 113,662,006.70/12,290.39
  6. Step 6: Final answer
    x = 9,248.04

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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.