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Finding the Third Proportional to 51,907.50 and 68,157

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Solution

The third proportional to 51,907.50 and 68,157 is: 89,493.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,907.50 : 68,157 = 68,157 : x
  2. Step 2: Convert to fraction form
    51,907.50/68,157 = 68,157/x
  3. Step 3: Cross multiply
    51,907.50x = 68,157 × 68,157
  4. Step 4: Simplify right side
    51,907.50x = 4,645,376,649
  5. Step 5: Solve for x
    x = 4,645,376,649/51,907.50
  6. Step 6: Final answer
    x = 89,493.36

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.