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Finding the Third Proportional to 12,318.75 and 26,487

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Solution

The third proportional to 12,318.75 and 26,487 is: 56,950.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,318.75 : 26,487 = 26,487 : x
  2. Step 2: Convert to fraction form
    12,318.75/26,487 = 26,487/x
  3. Step 3: Cross multiply
    12,318.75x = 26,487 × 26,487
  4. Step 4: Simplify right side
    12,318.75x = 701,561,169
  5. Step 5: Solve for x
    x = 701,561,169/12,318.75
  6. Step 6: Final answer
    x = 56,950.68

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.