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Finding the Fourth Proportional to 68,871.72, 95,035.67 and 38,660.37

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Solution

The fourth proportional to 68,871.72, 95,035.67 and 38,660.37 is: 53,347.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,871.72 : 95,035.67 = 38,660.37 : x
  2. Step 2: Convert to fraction form
    68,871.72/95,035.67 = 38,660.37/x
  3. Step 3: Cross multiply
    68,871.72x = 95,035.67 × 38,660.37
  4. Step 4: Simplify right side
    68,871.72x = 3,674,113,690.22
  5. Step 5: Solve for x
    x = 3,674,113,690.22/68,871.72
  6. Step 6: Final answer
    x = 53,347.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.