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Finding the Third Proportional to 7,818 and 15,925

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Solution

The third proportional to 7,818 and 15,925 is: 32,438.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,818 : 15,925 = 15,925 : x
  2. Step 2: Convert to fraction form
    7,818/15,925 = 15,925/x
  3. Step 3: Cross multiply
    7,818x = 15,925 × 15,925
  4. Step 4: Simplify right side
    7,818x = 253,605,625
  5. Step 5: Solve for x
    x = 253,605,625/7,818
  6. Step 6: Final answer
    x = 32,438.68

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.