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Finding the Third Proportional to 12,347.25 and 26,688.75

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Solution

The third proportional to 12,347.25 and 26,688.75 is: 57,688.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,347.25 : 26,688.75 = 26,688.75 : x
  2. Step 2: Convert to fraction form
    12,347.25/26,688.75 = 26,688.75/x
  3. Step 3: Cross multiply
    12,347.25x = 26,688.75 × 26,688.75
  4. Step 4: Simplify right side
    12,347.25x = 712,289,376.56
  5. Step 5: Solve for x
    x = 712,289,376.56/12,347.25
  6. Step 6: Final answer
    x = 57,688.10

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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.