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Finding the Fourth Proportional to 21,737.74, 29,997.63 and 11,801.74

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Solution

The fourth proportional to 21,737.74, 29,997.63 and 11,801.74 is: 16,286.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,737.74 : 29,997.63 = 11,801.74 : x
  2. Step 2: Convert to fraction form
    21,737.74/29,997.63 = 11,801.74/x
  3. Step 3: Cross multiply
    21,737.74x = 29,997.63 × 11,801.74
  4. Step 4: Simplify right side
    21,737.74x = 354,024,229.88
  5. Step 5: Solve for x
    x = 354,024,229.88/21,737.74
  6. Step 6: Final answer
    x = 16,286.16

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1.5x scale

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.