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Finding the Third Proportional to 1,985,901 and 4,286,640

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Solution

The third proportional to 1,985,901 and 4,286,640 is: 9,252,869.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,985,901 : 4,286,640 = 4,286,640 : x
  2. Step 2: Convert to fraction form
    1,985,901/4,286,640 = 4,286,640/x
  3. Step 3: Cross multiply
    1,985,901x = 4,286,640 × 4,286,640
  4. Step 4: Simplify right side
    1,985,901x = 18,375,282,489,600
  5. Step 5: Solve for x
    x = 18,375,282,489,600/1,985,901
  6. Step 6: Final answer
    x = 9,252,869.35

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.