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Finding the Third Proportional to 4,646,290 and 9,965,178

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Solution

The third proportional to 4,646,290 and 9,965,178 is: 21,372,917.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,646,290 : 9,965,178 = 9,965,178 : x
  2. Step 2: Convert to fraction form
    4,646,290/9,965,178 = 9,965,178/x
  3. Step 3: Cross multiply
    4,646,290x = 9,965,178 × 9,965,178
  4. Step 4: Simplify right side
    4,646,290x = 99,304,772,571,684
  5. Step 5: Solve for x
    x = 99,304,772,571,684/4,646,290
  6. Step 6: Final answer
    x = 21,372,917.44

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.