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Finding the Third Proportional to 28,778,891,430 and 64,174,982,646

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Solution

The third proportional to 28,778,891,430 and 64,174,982,646 is: 143,105,873,540.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,778,891,430 : 64,174,982,646 = 64,174,982,646 : x
  2. Step 2: Convert to fraction form
    28,778,891,430/64,174,982,646 = 64,174,982,646/x
  3. Step 3: Cross multiply
    28,778,891,430x = 64,174,982,646 × 64,174,982,646
  4. Step 4: Simplify right side
    28,778,891,430x = 4,118,428,397,614,401,060,864
  5. Step 5: Solve for x
    x = 4,118,428,397,614,401,060,864/28,778,891,430
  6. Step 6: Final answer
    x = 143,105,873,540.40

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.