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Finding the Third Proportional to 1,682,385.19 and 3,648,715.88

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Solution

The third proportional to 1,682,385.19 and 3,648,715.88 is: 7,913,245.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,682,385.19 : 3,648,715.88 = 3,648,715.88 : x
  2. Step 2: Convert to fraction form
    1,682,385.19/3,648,715.88 = 3,648,715.88/x
  3. Step 3: Cross multiply
    1,682,385.19x = 3,648,715.88 × 3,648,715.88
  4. Step 4: Simplify right side
    1,682,385.19x = 13,313,127,536,477.02
  5. Step 5: Solve for x
    x = 13,313,127,536,477.02/1,682,385.19
  6. Step 6: Final answer
    x = 7,913,245.81

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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.