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Finding the Third Proportional to 3,345.25 and 7,745

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Solution

The third proportional to 3,345.25 and 7,745 is: 17,931.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,345.25 : 7,745 = 7,745 : x
  2. Step 2: Convert to fraction form
    3,345.25/7,745 = 7,745/x
  3. Step 3: Cross multiply
    3,345.25x = 7,745 × 7,745
  4. Step 4: Simplify right side
    3,345.25x = 59,985,025
  5. Step 5: Solve for x
    x = 59,985,025/3,345.25
  6. Step 6: Final answer
    x = 17,931.40

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Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.