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Finding the Third Proportional to 4,385.81 and 6,816.66

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Solution

The third proportional to 4,385.81 and 6,816.66 is: 10,594.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,385.81 : 6,816.66 = 6,816.66 : x
  2. Step 2: Convert to fraction form
    4,385.81/6,816.66 = 6,816.66/x
  3. Step 3: Cross multiply
    4,385.81x = 6,816.66 × 6,816.66
  4. Step 4: Simplify right side
    4,385.81x = 46,466,802.43
  5. Step 5: Solve for x
    x = 46,466,802.43/4,385.81
  6. Step 6: Final answer
    x = 10,594.80

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.