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Finding the Third Proportional to 2,786,907.80 and 6,121,864.13

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Solution

The third proportional to 2,786,907.80 and 6,121,864.13 is: 13,447,599.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786,907.80 : 6,121,864.13 = 6,121,864.13 : x
  2. Step 2: Convert to fraction form
    2,786,907.80/6,121,864.13 = 6,121,864.13/x
  3. Step 3: Cross multiply
    2,786,907.80x = 6,121,864.13 × 6,121,864.13
  4. Step 4: Simplify right side
    2,786,907.80x = 37,477,220,436,704.14
  5. Step 5: Solve for x
    x = 37,477,220,436,704.14/2,786,907.80
  6. Step 6: Final answer
    x = 13,447,599.67

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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.