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Finding the Third Proportional to 4,486,431,726 and 9,817,185,420

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Solution

The third proportional to 4,486,431,726 and 9,817,185,420 is: 21,481,911,562.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,486,431,726 : 9,817,185,420 = 9,817,185,420 : x
  2. Step 2: Convert to fraction form
    4,486,431,726/9,817,185,420 = 9,817,185,420/x
  3. Step 3: Cross multiply
    4,486,431,726x = 9,817,185,420 × 9,817,185,420
  4. Step 4: Simplify right side
    4,486,431,726x = 96,377,129,570,660,581,376
  5. Step 5: Solve for x
    x = 96,377,129,570,660,581,376/4,486,431,726
  6. Step 6: Final answer
    x = 21,481,911,562.84

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.