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Finding the Third Proportional to 9,219,736,291 and 19,837,815,837

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Solution

The third proportional to 9,219,736,291 and 19,837,815,837 is: 42,684,402,759.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,219,736,291 : 19,837,815,837 = 19,837,815,837 : x
  2. Step 2: Convert to fraction form
    9,219,736,291/19,837,815,837 = 19,837,815,837/x
  3. Step 3: Cross multiply
    9,219,736,291x = 19,837,815,837 × 19,837,815,837
  4. Step 4: Simplify right side
    9,219,736,291x = 393,538,937,182,728,028,160
  5. Step 5: Solve for x
    x = 393,538,937,182,728,028,160/9,219,736,291
  6. Step 6: Final answer
    x = 42,684,402,759.64

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.