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Finding the Third Proportional to 20,916,924 and 45,307,156

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Solution

The third proportional to 20,916,924 and 45,307,156 is: 98,137,679.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,916,924 : 45,307,156 = 45,307,156 : x
  2. Step 2: Convert to fraction form
    20,916,924/45,307,156 = 45,307,156/x
  3. Step 3: Cross multiply
    20,916,924x = 45,307,156 × 45,307,156
  4. Step 4: Simplify right side
    20,916,924x = 2,052,738,384,808,336
  5. Step 5: Solve for x
    x = 2,052,738,384,808,336/20,916,924
  6. Step 6: Final answer
    x = 98,137,679.56

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.