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Finding the Third Proportional to 36,015,881 and 78,862,330

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Solution

The third proportional to 36,015,881 and 78,862,330 is: 172,681,242.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,015,881 : 78,862,330 = 78,862,330 : x
  2. Step 2: Convert to fraction form
    36,015,881/78,862,330 = 78,862,330/x
  3. Step 3: Cross multiply
    36,015,881x = 78,862,330 × 78,862,330
  4. Step 4: Simplify right side
    36,015,881x = 6,219,267,093,028,900
  5. Step 5: Solve for x
    x = 6,219,267,093,028,900/36,015,881
  6. Step 6: Final answer
    x = 172,681,242.84

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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.