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Finding the Fourth Proportional to 68,871.63, 95,035.54 and 38,660.27

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Solution

The fourth proportional to 68,871.63, 95,035.54 and 38,660.27 is: 53,347.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,871.63 : 95,035.54 = 38,660.27 : x
  2. Step 2: Convert to fraction form
    68,871.63/95,035.54 = 38,660.27/x
  3. Step 3: Cross multiply
    68,871.63x = 95,035.54 × 38,660.27
  4. Step 4: Simplify right side
    68,871.63x = 3,674,099,921.91
  5. Step 5: Solve for x
    x = 3,674,099,921.91/68,871.63
  6. Step 6: Final answer
    x = 53,347.08

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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.