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Finding the Third Proportional to 16,656,978 and 38,557,236

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Solution

The third proportional to 16,656,978 and 38,557,236 is: 89,251,510.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,656,978 : 38,557,236 = 38,557,236 : x
  2. Step 2: Convert to fraction form
    16,656,978/38,557,236 = 38,557,236/x
  3. Step 3: Cross multiply
    16,656,978x = 38,557,236 × 38,557,236
  4. Step 4: Simplify right side
    16,656,978x = 1,486,660,447,959,696
  5. Step 5: Solve for x
    x = 1,486,660,447,959,696/16,656,978
  6. Step 6: Final answer
    x = 89,251,510.57

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Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.