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Finding the Fourth Proportional to 16,611.13, 24,916.70 and 11,401.21

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Solution

The fourth proportional to 16,611.13, 24,916.70 and 11,401.21 is: 17,101.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,611.13 : 24,916.70 = 11,401.21 : x
  2. Step 2: Convert to fraction form
    16,611.13/24,916.70 = 11,401.21/x
  3. Step 3: Cross multiply
    16,611.13x = 24,916.70 × 11,401.21
  4. Step 4: Simplify right side
    16,611.13x = 284,080,529.21
  5. Step 5: Solve for x
    x = 284,080,529.21/16,611.13
  6. Step 6: Final answer
    x = 17,101.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.