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Finding the Third Proportional to 1,619,900.65 and 3,480,197.91

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Solution

The third proportional to 1,619,900.65 and 3,480,197.91 is: 7,476,864.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,619,900.65 : 3,480,197.91 = 3,480,197.91 : x
  2. Step 2: Convert to fraction form
    1,619,900.65/3,480,197.91 = 3,480,197.91/x
  3. Step 3: Cross multiply
    1,619,900.65x = 3,480,197.91 × 3,480,197.91
  4. Step 4: Simplify right side
    1,619,900.65x = 12,111,777,466,666.88
  5. Step 5: Solve for x
    x = 12,111,777,466,666.88/1,619,900.65
  6. Step 6: Final answer
    x = 7,476,864.39

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.