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Finding the Fourth Proportional to 54,407, 81,611.04 and 19,348.04

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Solution

The fourth proportional to 54,407, 81,611.04 and 19,348.04 is: 29,022.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,407 : 81,611.04 = 19,348.04 : x
  2. Step 2: Convert to fraction form
    54,407/81,611.04 = 19,348.04/x
  3. Step 3: Cross multiply
    54,407x = 81,611.04 × 19,348.04
  4. Step 4: Simplify right side
    54,407x = 1,579,013,666.36
  5. Step 5: Solve for x
    x = 1,579,013,666.36/54,407
  6. Step 6: Final answer
    x = 29,022.25

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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.