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Finding the Third Proportional to 912.75 and 2,457

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Solution

The third proportional to 912.75 and 2,457 is: 6,613.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    912.75 : 2,457 = 2,457 : x
  2. Step 2: Convert to fraction form
    912.75/2,457 = 2,457/x
  3. Step 3: Cross multiply
    912.75x = 2,457 × 2,457
  4. Step 4: Simplify right side
    912.75x = 6,036,849
  5. Step 5: Solve for x
    x = 6,036,849/912.75
  6. Step 6: Final answer
    x = 6,613.91

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Why These Related Problems?

These problems maintain the same ratio (2.69) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.