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Finding the Third Proportional to 15,751 and 25,378.50

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Solution

The third proportional to 15,751 and 25,378.50 is: 40,890.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,751 : 25,378.50 = 25,378.50 : x
  2. Step 2: Convert to fraction form
    15,751/25,378.50 = 25,378.50/x
  3. Step 3: Cross multiply
    15,751x = 25,378.50 × 25,378.50
  4. Step 4: Simplify right side
    15,751x = 644,068,262.25
  5. Step 5: Solve for x
    x = 644,068,262.25/15,751
  6. Step 6: Final answer
    x = 40,890.63

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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.