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Finding the Third Proportional to 39,636,279 and 87,066,972

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Solution

The third proportional to 39,636,279 and 87,066,972 is: 191,255,531.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,636,279 : 87,066,972 = 87,066,972 : x
  2. Step 2: Convert to fraction form
    39,636,279/87,066,972 = 87,066,972/x
  3. Step 3: Cross multiply
    39,636,279x = 87,066,972 × 87,066,972
  4. Step 4: Simplify right side
    39,636,279x = 7,580,657,613,248,784
  5. Step 5: Solve for x
    x = 7,580,657,613,248,784/39,636,279
  6. Step 6: Final answer
    x = 191,255,531.66

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.