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Finding the Third Proportional to 1,220,945.06 and 2,619,037.13

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Solution

The third proportional to 1,220,945.06 and 2,619,037.13 is: 5,618,070.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,945.06 : 2,619,037.13 = 2,619,037.13 : x
  2. Step 2: Convert to fraction form
    1,220,945.06/2,619,037.13 = 2,619,037.13/x
  3. Step 3: Cross multiply
    1,220,945.06x = 2,619,037.13 × 2,619,037.13
  4. Step 4: Simplify right side
    1,220,945.06x = 6,859,355,462,128.27
  5. Step 5: Solve for x
    x = 6,859,355,462,128.27/1,220,945.06
  6. Step 6: Final answer
    x = 5,618,070.52

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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.