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Finding the Third Proportional to 12,534.75 and 13,776.75

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Solution

The third proportional to 12,534.75 and 13,776.75 is: 15,141.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,534.75 : 13,776.75 = 13,776.75 : x
  2. Step 2: Convert to fraction form
    12,534.75/13,776.75 = 13,776.75/x
  3. Step 3: Cross multiply
    12,534.75x = 13,776.75 × 13,776.75
  4. Step 4: Simplify right side
    12,534.75x = 189,798,840.56
  5. Step 5: Solve for x
    x = 189,798,840.56/12,534.75
  6. Step 6: Final answer
    x = 15,141.81

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Why These Related Problems?

These problems maintain the same ratio (1.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.