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Finding the Third Proportional to 12,816 and 14,706

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Solution

The third proportional to 12,816 and 14,706 is: 16,874.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,816 : 14,706 = 14,706 : x
  2. Step 2: Convert to fraction form
    12,816/14,706 = 14,706/x
  3. Step 3: Cross multiply
    12,816x = 14,706 × 14,706
  4. Step 4: Simplify right side
    12,816x = 216,266,436
  5. Step 5: Solve for x
    x = 216,266,436/12,816
  6. Step 6: Final answer
    x = 16,874.72

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Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.