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Finding the Third Proportional to 625.06 and 911.88

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Solution

The third proportional to 625.06 and 911.88 is: 1,330.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.06 : 911.88 = 911.88 : x
  2. Step 2: Convert to fraction form
    625.06/911.88 = 911.88/x
  3. Step 3: Cross multiply
    625.06x = 911.88 × 911.88
  4. Step 4: Simplify right side
    625.06x = 831,530.26
  5. Step 5: Solve for x
    x = 831,530.26/625.06
  6. Step 6: Final answer
    x = 1,330.32

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.