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Finding the Fourth Proportional to 29,468.78, 40,667.78 and 16,040.91

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Solution

The fourth proportional to 29,468.78, 40,667.78 and 16,040.91 is: 22,136.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,468.78 : 40,667.78 = 16,040.91 : x
  2. Step 2: Convert to fraction form
    29,468.78/40,667.78 = 16,040.91/x
  3. Step 3: Cross multiply
    29,468.78x = 40,667.78 × 16,040.91
  4. Step 4: Simplify right side
    29,468.78x = 652,348,198.88
  5. Step 5: Solve for x
    x = 652,348,198.88/29,468.78
  6. Step 6: Final answer
    x = 22,136.93

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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.