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Finding the Third Proportional to 3,246.47 and 4,642.59

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Solution

The third proportional to 3,246.47 and 4,642.59 is: 6,639.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,246.47 : 4,642.59 = 4,642.59 : x
  2. Step 2: Convert to fraction form
    3,246.47/4,642.59 = 4,642.59/x
  3. Step 3: Cross multiply
    3,246.47x = 4,642.59 × 4,642.59
  4. Step 4: Simplify right side
    3,246.47x = 21,553,676.73
  5. Step 5: Solve for x
    x = 21,553,676.73/3,246.47
  6. Step 6: Final answer
    x = 6,639.11

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.