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Finding the Fourth Proportional to 11,019.97, 16,611.29 and 10,376.97

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Solution

The fourth proportional to 11,019.97, 16,611.29 and 10,376.97 is: 15,642.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,019.97 : 16,611.29 = 10,376.97 : x
  2. Step 2: Convert to fraction form
    11,019.97/16,611.29 = 10,376.97/x
  3. Step 3: Cross multiply
    11,019.97x = 16,611.29 × 10,376.97
  4. Step 4: Simplify right side
    11,019.97x = 172,374,914.12
  5. Step 5: Solve for x
    x = 172,374,914.12/11,019.97
  6. Step 6: Final answer
    x = 15,642.04

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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.