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Finding the Third Proportional to 5,280.75 and 11,606.63

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Solution

The third proportional to 5,280.75 and 11,606.63 is: 25,510.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.75 : 11,606.63 = 11,606.63 : x
  2. Step 2: Convert to fraction form
    5,280.75/11,606.63 = 11,606.63/x
  3. Step 3: Cross multiply
    5,280.75x = 11,606.63 × 11,606.63
  4. Step 4: Simplify right side
    5,280.75x = 134,713,743.89
  5. Step 5: Solve for x
    x = 134,713,743.89/5,280.75
  6. Step 6: Final answer
    x = 25,510.34

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.