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Finding the Third Proportional to 12,776 and 19,735

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Solution

The third proportional to 12,776 and 19,735 is: 30,484.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,776 : 19,735 = 19,735 : x
  2. Step 2: Convert to fraction form
    12,776/19,735 = 19,735/x
  3. Step 3: Cross multiply
    12,776x = 19,735 × 19,735
  4. Step 4: Simplify right side
    12,776x = 389,470,225
  5. Step 5: Solve for x
    x = 389,470,225/12,776
  6. Step 6: Final answer
    x = 30,484.52

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.