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Finding the Third Proportional to 2,949 and 4,545

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Solution

The third proportional to 2,949 and 4,545 is: 7,004.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,949 : 4,545 = 4,545 : x
  2. Step 2: Convert to fraction form
    2,949/4,545 = 4,545/x
  3. Step 3: Cross multiply
    2,949x = 4,545 × 4,545
  4. Step 4: Simplify right side
    2,949x = 20,657,025
  5. Step 5: Solve for x
    x = 20,657,025/2,949
  6. Step 6: Final answer
    x = 7,004.76

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.