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Finding the Third Proportional to 2,138,739.19 and 4,755,655.55

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Solution

The third proportional to 2,138,739.19 and 4,755,655.55 is: 10,574,575.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,739.19 : 4,755,655.55 = 4,755,655.55 : x
  2. Step 2: Convert to fraction form
    2,138,739.19/4,755,655.55 = 4,755,655.55/x
  3. Step 3: Cross multiply
    2,138,739.19x = 4,755,655.55 × 4,755,655.55
  4. Step 4: Simplify right side
    2,138,739.19x = 22,616,259,680,522.96
  5. Step 5: Solve for x
    x = 22,616,259,680,522.96/2,138,739.19
  6. Step 6: Final answer
    x = 10,574,575.81

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.