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Finding the Third Proportional to 14,343 and 31,438.50

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Solution

The third proportional to 14,343 and 31,438.50 is: 68,910.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,343 : 31,438.50 = 31,438.50 : x
  2. Step 2: Convert to fraction form
    14,343/31,438.50 = 31,438.50/x
  3. Step 3: Cross multiply
    14,343x = 31,438.50 × 31,438.50
  4. Step 4: Simplify right side
    14,343x = 988,379,282.25
  5. Step 5: Solve for x
    x = 988,379,282.25/14,343
  6. Step 6: Final answer
    x = 68,910.22

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.