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Finding the Third Proportional to 38,872,072 and 89,991,268

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Solution

The third proportional to 38,872,072 and 89,991,268 is: 208,335,390.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,872,072 : 89,991,268 = 89,991,268 : x
  2. Step 2: Convert to fraction form
    38,872,072/89,991,268 = 89,991,268/x
  3. Step 3: Cross multiply
    38,872,072x = 89,991,268 × 89,991,268
  4. Step 4: Simplify right side
    38,872,072x = 8,098,428,316,247,824
  5. Step 5: Solve for x
    x = 8,098,428,316,247,824/38,872,072
  6. Step 6: Final answer
    x = 208,335,390.93

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Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.