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Finding the Fourth Proportional to 57,832.79, 86,282.52 and 51,521.87

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Solution

The fourth proportional to 57,832.79, 86,282.52 and 51,521.87 is: 76,867.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,832.79 : 86,282.52 = 51,521.87 : x
  2. Step 2: Convert to fraction form
    57,832.79/86,282.52 = 51,521.87/x
  3. Step 3: Cross multiply
    57,832.79x = 86,282.52 × 51,521.87
  4. Step 4: Simplify right side
    57,832.79x = 4,445,436,801.21
  5. Step 5: Solve for x
    x = 4,445,436,801.21/57,832.79
  6. Step 6: Final answer
    x = 76,867.07

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.