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Finding the Fourth Proportional to 12,549.68, 17,318.28 and 6,960.32

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Solution

The fourth proportional to 12,549.68, 17,318.28 and 6,960.32 is: 9,605.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,549.68 : 17,318.28 = 6,960.32 : x
  2. Step 2: Convert to fraction form
    12,549.68/17,318.28 = 6,960.32/x
  3. Step 3: Cross multiply
    12,549.68x = 17,318.28 × 6,960.32
  4. Step 4: Simplify right side
    12,549.68x = 120,540,770.65
  5. Step 5: Solve for x
    x = 120,540,770.65/12,549.68
  6. Step 6: Final answer
    x = 9,605.09

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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.