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Finding the Fourth Proportional to 55,372.72, 83,046.84 and 15,921.04

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Solution

The fourth proportional to 55,372.72, 83,046.84 and 15,921.04 is: 23,878.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,372.72 : 83,046.84 = 15,921.04 : x
  2. Step 2: Convert to fraction form
    55,372.72/83,046.84 = 15,921.04/x
  3. Step 3: Cross multiply
    55,372.72x = 83,046.84 × 15,921.04
  4. Step 4: Simplify right side
    55,372.72x = 1,322,192,061.51
  5. Step 5: Solve for x
    x = 1,322,192,061.51/55,372.72
  6. Step 6: Final answer
    x = 23,878.04

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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.