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Finding the Fourth Proportional to 57,579.83, 86,174.66 and 35,407.25

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Solution

The fourth proportional to 57,579.83, 86,174.66 and 35,407.25 is: 52,990.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,579.83 : 86,174.66 = 35,407.25 : x
  2. Step 2: Convert to fraction form
    57,579.83/86,174.66 = 35,407.25/x
  3. Step 3: Cross multiply
    57,579.83x = 86,174.66 × 35,407.25
  4. Step 4: Simplify right side
    57,579.83x = 3,051,207,387.93
  5. Step 5: Solve for x
    x = 3,051,207,387.93/57,579.83
  6. Step 6: Final answer
    x = 52,990.91

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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.