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Finding the Third Proportional to 1,556,711.16 and 3,419,890.88

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Solution

The third proportional to 1,556,711.16 and 3,419,890.88 is: 7,513,053.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556,711.16 : 3,419,890.88 = 3,419,890.88 : x
  2. Step 2: Convert to fraction form
    1,556,711.16/3,419,890.88 = 3,419,890.88/x
  3. Step 3: Cross multiply
    1,556,711.16x = 3,419,890.88 × 3,419,890.88
  4. Step 4: Simplify right side
    1,556,711.16x = 11,695,653,596,908.27
  5. Step 5: Solve for x
    x = 11,695,653,596,908.27/1,556,711.16
  6. Step 6: Final answer
    x = 7,513,053.11

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.