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Finding the Third Proportional to 1,636,581.66 and 3,556,447.88

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Solution

The third proportional to 1,636,581.66 and 3,556,447.88 is: 7,728,500.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,636,581.66 : 3,556,447.88 = 3,556,447.88 : x
  2. Step 2: Convert to fraction form
    1,636,581.66/3,556,447.88 = 3,556,447.88/x
  3. Step 3: Cross multiply
    1,636,581.66x = 3,556,447.88 × 3,556,447.88
  4. Step 4: Simplify right side
    1,636,581.66x = 12,648,321,487,592.02
  5. Step 5: Solve for x
    x = 12,648,321,487,592.02/1,636,581.66
  6. Step 6: Final answer
    x = 7,728,500.10

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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.