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Finding the Third Proportional to 3,188 and 4,545

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Solution

The third proportional to 3,188 and 4,545 is: 6,479.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188 : 4,545 = 4,545 : x
  2. Step 2: Convert to fraction form
    3,188/4,545 = 4,545/x
  3. Step 3: Cross multiply
    3,188x = 4,545 × 4,545
  4. Step 4: Simplify right side
    3,188x = 20,657,025
  5. Step 5: Solve for x
    x = 20,657,025/3,188
  6. Step 6: Final answer
    x = 6,479.62

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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.