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Finding the Third Proportional to 19,087,965 and 40,386,906

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Solution

The third proportional to 19,087,965 and 40,386,906 is: 85,451,863.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,087,965 : 40,386,906 = 40,386,906 : x
  2. Step 2: Convert to fraction form
    19,087,965/40,386,906 = 40,386,906/x
  3. Step 3: Cross multiply
    19,087,965x = 40,386,906 × 40,386,906
  4. Step 4: Simplify right side
    19,087,965x = 1,631,102,176,252,836
  5. Step 5: Solve for x
    x = 1,631,102,176,252,836/19,087,965
  6. Step 6: Final answer
    x = 85,451,863.32

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.