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Finding the Third Proportional to 13,311 and 21,444.75

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Solution

The third proportional to 13,311 and 21,444.75 is: 34,548.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,311 : 21,444.75 = 21,444.75 : x
  2. Step 2: Convert to fraction form
    13,311/21,444.75 = 21,444.75/x
  3. Step 3: Cross multiply
    13,311x = 21,444.75 × 21,444.75
  4. Step 4: Simplify right side
    13,311x = 459,877,302.56
  5. Step 5: Solve for x
    x = 459,877,302.56/13,311
  6. Step 6: Final answer
    x = 34,548.67

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.