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Finding the Fourth Proportional to 12,706.92, 17,552.27 and 9,759.18

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Solution

The fourth proportional to 12,706.92, 17,552.27 and 9,759.18 is: 13,480.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,706.92 : 17,552.27 = 9,759.18 : x
  2. Step 2: Convert to fraction form
    12,706.92/17,552.27 = 9,759.18/x
  3. Step 3: Cross multiply
    12,706.92x = 17,552.27 × 9,759.18
  4. Step 4: Simplify right side
    12,706.92x = 171,295,713.54
  5. Step 5: Solve for x
    x = 171,295,713.54/12,706.92
  6. Step 6: Final answer
    x = 13,480.51

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Half scale
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Double scale
Find fourth proportional to 12,707.92, 17,553.65 and 9,760.18
Similar ratio
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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.