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Finding the Third Proportional to 6,646.50 and 14,387.63

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Solution

The third proportional to 6,646.50 and 14,387.63 is: 31,144.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,646.50 : 14,387.63 = 14,387.63 : x
  2. Step 2: Convert to fraction form
    6,646.50/14,387.63 = 14,387.63/x
  3. Step 3: Cross multiply
    6,646.50x = 14,387.63 × 14,387.63
  4. Step 4: Simplify right side
    6,646.50x = 207,003,753.14
  5. Step 5: Solve for x
    x = 207,003,753.14/6,646.50
  6. Step 6: Final answer
    x = 31,144.78

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.