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Finding the Third Proportional to 16,621.88 and 36,423

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Solution

The third proportional to 16,621.88 and 36,423 is: 79,812.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,621.88 : 36,423 = 36,423 : x
  2. Step 2: Convert to fraction form
    16,621.88/36,423 = 36,423/x
  3. Step 3: Cross multiply
    16,621.88x = 36,423 × 36,423
  4. Step 4: Simplify right side
    16,621.88x = 1,326,634,929
  5. Step 5: Solve for x
    x = 1,326,634,929/16,621.88
  6. Step 6: Final answer
    x = 79,812.59

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.