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Finding the Fourth Proportional to 69,871.41, 96,422.40 and 38,040.03

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Solution

The fourth proportional to 69,871.41, 96,422.40 and 38,040.03 is: 52,495.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,871.41 : 96,422.40 = 38,040.03 : x
  2. Step 2: Convert to fraction form
    69,871.41/96,422.40 = 38,040.03/x
  3. Step 3: Cross multiply
    69,871.41x = 96,422.40 × 38,040.03
  4. Step 4: Simplify right side
    69,871.41x = 3,667,910,988.67
  5. Step 5: Solve for x
    x = 3,667,910,988.67/69,871.41
  6. Step 6: Final answer
    x = 52,495.16

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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.