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Finding the Fourth Proportional to 12,550.49, 17,319.68 and 6,961.49

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Solution

The fourth proportional to 12,550.49, 17,319.68 and 6,961.49 is: 9,606.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,550.49 : 17,319.68 = 6,961.49 : x
  2. Step 2: Convert to fraction form
    12,550.49/17,319.68 = 6,961.49/x
  3. Step 3: Cross multiply
    12,550.49x = 17,319.68 × 6,961.49
  4. Step 4: Simplify right side
    12,550.49x = 120,570,657.72
  5. Step 5: Solve for x
    x = 120,570,657.72/12,550.49
  6. Step 6: Final answer
    x = 9,606.85

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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.