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Finding the Third Proportional to 12,476 and 15,770

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Solution

The third proportional to 12,476 and 15,770 is: 19,933.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,476 : 15,770 = 15,770 : x
  2. Step 2: Convert to fraction form
    12,476/15,770 = 15,770/x
  3. Step 3: Cross multiply
    12,476x = 15,770 × 15,770
  4. Step 4: Simplify right side
    12,476x = 248,692,900
  5. Step 5: Solve for x
    x = 248,692,900/12,476
  6. Step 6: Final answer
    x = 19,933.70

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Why These Related Problems?

These problems maintain the same ratio (1.26) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.