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Finding the Third Proportional to 504.75 and 1,245

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Solution

The third proportional to 504.75 and 1,245 is: 3,070.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    504.75 : 1,245 = 1,245 : x
  2. Step 2: Convert to fraction form
    504.75/1,245 = 1,245/x
  3. Step 3: Cross multiply
    504.75x = 1,245 × 1,245
  4. Step 4: Simplify right side
    504.75x = 1,550,025
  5. Step 5: Solve for x
    x = 1,550,025/504.75
  6. Step 6: Final answer
    x = 3,070.88

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Why These Related Problems?

These problems maintain the same ratio (2.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.