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Finding the Third Proportional to 4,990.50 and 11,376

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Solution

The third proportional to 4,990.50 and 11,376 is: 25,931.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.50 : 11,376 = 11,376 : x
  2. Step 2: Convert to fraction form
    4,990.50/11,376 = 11,376/x
  3. Step 3: Cross multiply
    4,990.50x = 11,376 × 11,376
  4. Step 4: Simplify right side
    4,990.50x = 129,413,376
  5. Step 5: Solve for x
    x = 129,413,376/4,990.50
  6. Step 6: Final answer
    x = 25,931.95

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Why These Related Problems?

These problems maintain the same ratio (2.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.