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Finding the Fourth Proportional to 52,659.91, 78,982.08 and 19,372.19

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Solution

The fourth proportional to 52,659.91, 78,982.08 and 19,372.19 is: 29,055.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,659.91 : 78,982.08 = 19,372.19 : x
  2. Step 2: Convert to fraction form
    52,659.91/78,982.08 = 19,372.19/x
  3. Step 3: Cross multiply
    52,659.91x = 78,982.08 × 19,372.19
  4. Step 4: Simplify right side
    52,659.91x = 1,530,056,044.77
  5. Step 5: Solve for x
    x = 1,530,056,044.77/52,659.91
  6. Step 6: Final answer
    x = 29,055.42

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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.