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Finding the Fourth Proportional to 29,174.88, 40,266 and 16,603.68

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Solution

The fourth proportional to 29,174.88, 40,266 and 16,603.68 is: 22,915.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,174.88 : 40,266 = 16,603.68 : x
  2. Step 2: Convert to fraction form
    29,174.88/40,266 = 16,603.68/x
  3. Step 3: Cross multiply
    29,174.88x = 40,266 × 16,603.68
  4. Step 4: Simplify right side
    29,174.88x = 668,563,778.88
  5. Step 5: Solve for x
    x = 668,563,778.88/29,174.88
  6. Step 6: Final answer
    x = 22,915.73

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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.