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Finding the Third Proportional to 14,107.50 and 21,555

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Solution

The third proportional to 14,107.50 and 21,555 is: 32,934.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,107.50 : 21,555 = 21,555 : x
  2. Step 2: Convert to fraction form
    14,107.50/21,555 = 21,555/x
  3. Step 3: Cross multiply
    14,107.50x = 21,555 × 21,555
  4. Step 4: Simplify right side
    14,107.50x = 464,618,025
  5. Step 5: Solve for x
    x = 464,618,025/14,107.50
  6. Step 6: Final answer
    x = 32,934.11

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.