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Finding the Third Proportional to 7,727.50 and 16,784

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Solution

The third proportional to 7,727.50 and 16,784 is: 36,454.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,727.50 : 16,784 = 16,784 : x
  2. Step 2: Convert to fraction form
    7,727.50/16,784 = 16,784/x
  3. Step 3: Cross multiply
    7,727.50x = 16,784 × 16,784
  4. Step 4: Simplify right side
    7,727.50x = 281,702,656
  5. Step 5: Solve for x
    x = 281,702,656/7,727.50
  6. Step 6: Final answer
    x = 36,454.57

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.