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Finding the Fourth Proportional to 22,090.88, 33,129.76 and 11,696.96

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Solution

The fourth proportional to 22,090.88, 33,129.76 and 11,696.96 is: 17,541.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,090.88 : 33,129.76 = 11,696.96 : x
  2. Step 2: Convert to fraction form
    22,090.88/33,129.76 = 11,696.96/x
  3. Step 3: Cross multiply
    22,090.88x = 33,129.76 × 11,696.96
  4. Step 4: Simplify right side
    22,090.88x = 387,517,477.53
  5. Step 5: Solve for x
    x = 387,517,477.53/22,090.88
  6. Step 6: Final answer
    x = 17,541.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.