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Finding the Third Proportional to 3,663,845.79 and 5,389,200.84

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Solution

The third proportional to 3,663,845.79 and 5,389,200.84 is: 7,927,049.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,663,845.79 : 5,389,200.84 = 5,389,200.84 : x
  2. Step 2: Convert to fraction form
    3,663,845.79/5,389,200.84 = 5,389,200.84/x
  3. Step 3: Cross multiply
    3,663,845.79x = 5,389,200.84 × 5,389,200.84
  4. Step 4: Simplify right side
    3,663,845.79x = 29,043,485,734,275.71
  5. Step 5: Solve for x
    x = 29,043,485,734,275.71/3,663,845.79
  6. Step 6: Final answer
    x = 7,927,049.17

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.