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Finding the Third Proportional to 38,872,236 and 85,065,789

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Solution

The third proportional to 38,872,236 and 85,065,789 is: 186,153,131.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,872,236 : 85,065,789 = 85,065,789 : x
  2. Step 2: Convert to fraction form
    38,872,236/85,065,789 = 85,065,789/x
  3. Step 3: Cross multiply
    38,872,236x = 85,065,789 × 85,065,789
  4. Step 4: Simplify right side
    38,872,236x = 7,236,188,458,192,521
  5. Step 5: Solve for x
    x = 7,236,188,458,192,521/38,872,236
  6. Step 6: Final answer
    x = 186,153,131.46

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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.