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Finding the Fourth Proportional to 11,761.68, 17,706.71 and 10,728.33

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Solution

The fourth proportional to 11,761.68, 17,706.71 and 10,728.33 is: 16,151.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,761.68 : 17,706.71 = 10,728.33 : x
  2. Step 2: Convert to fraction form
    11,761.68/17,706.71 = 10,728.33/x
  3. Step 3: Cross multiply
    11,761.68x = 17,706.71 × 10,728.33
  4. Step 4: Simplify right side
    11,761.68x = 189,963,374.45
  5. Step 5: Solve for x
    x = 189,963,374.45/11,761.68
  6. Step 6: Final answer
    x = 16,151.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.