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Finding the Third Proportional to 8,461 and 12,446.25

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Solution

The third proportional to 8,461 and 12,446.25 is: 18,308.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,461 : 12,446.25 = 12,446.25 : x
  2. Step 2: Convert to fraction form
    8,461/12,446.25 = 12,446.25/x
  3. Step 3: Cross multiply
    8,461x = 12,446.25 × 12,446.25
  4. Step 4: Simplify right side
    8,461x = 154,909,139.06
  5. Step 5: Solve for x
    x = 154,909,139.06/8,461
  6. Step 6: Final answer
    x = 18,308.61

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.