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Finding the Third Proportional to 9,891,634 and 20,845,988

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Solution

The third proportional to 9,891,634 and 20,845,988 is: 43,931,590.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,891,634 : 20,845,988 = 20,845,988 : x
  2. Step 2: Convert to fraction form
    9,891,634/20,845,988 = 20,845,988/x
  3. Step 3: Cross multiply
    9,891,634x = 20,845,988 × 20,845,988
  4. Step 4: Simplify right side
    9,891,634x = 434,555,215,696,144
  5. Step 5: Solve for x
    x = 434,555,215,696,144/9,891,634
  6. Step 6: Final answer
    x = 43,931,590.64

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.