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Finding the Third Proportional to 7,229,931,986 and 11,172,088,515

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Solution

The third proportional to 7,229,931,986 and 11,172,088,515 is: 17,263,725,582.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,229,931,986 : 11,172,088,515 = 11,172,088,515 : x
  2. Step 2: Convert to fraction form
    7,229,931,986/11,172,088,515 = 11,172,088,515/x
  3. Step 3: Cross multiply
    7,229,931,986x = 11,172,088,515 × 11,172,088,515
  4. Step 4: Simplify right side
    7,229,931,986x = 124,815,561,786,994,900,992
  5. Step 5: Solve for x
    x = 124,815,561,786,994,900,992/7,229,931,986
  6. Step 6: Final answer
    x = 17,263,725,582.58

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.