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Finding the Third Proportional to 51,284 and 77,610

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Solution

The third proportional to 51,284 and 77,610 is: 117,450.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,284 : 77,610 = 77,610 : x
  2. Step 2: Convert to fraction form
    51,284/77,610 = 77,610/x
  3. Step 3: Cross multiply
    51,284x = 77,610 × 77,610
  4. Step 4: Simplify right side
    51,284x = 6,023,312,100
  5. Step 5: Solve for x
    x = 6,023,312,100/51,284
  6. Step 6: Final answer
    x = 117,450.12

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.