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Finding the Third Proportional to 5,615,761 and 12,128,174

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Solution

The third proportional to 5,615,761 and 12,128,174 is: 26,192,817.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,615,761 : 12,128,174 = 12,128,174 : x
  2. Step 2: Convert to fraction form
    5,615,761/12,128,174 = 12,128,174/x
  3. Step 3: Cross multiply
    5,615,761x = 12,128,174 × 12,128,174
  4. Step 4: Simplify right side
    5,615,761x = 147,092,604,574,276
  5. Step 5: Solve for x
    x = 147,092,604,574,276/5,615,761
  6. Step 6: Final answer
    x = 26,192,817.78

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.