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Finding the Third Proportional to 1,655,217.28 and 3,555,395.65

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Solution

The third proportional to 1,655,217.28 and 3,555,395.65 is: 7,636,966.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,655,217.28 : 3,555,395.65 = 3,555,395.65 : x
  2. Step 2: Convert to fraction form
    1,655,217.28/3,555,395.65 = 3,555,395.65/x
  3. Step 3: Cross multiply
    1,655,217.28x = 3,555,395.65 × 3,555,395.65
  4. Step 4: Simplify right side
    1,655,217.28x = 12,640,838,216,928.31
  5. Step 5: Solve for x
    x = 12,640,838,216,928.31/1,655,217.28
  6. Step 6: Final answer
    x = 7,636,966.07

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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.