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Finding the Third Proportional to 654.75 and 1,114.13

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Solution

The third proportional to 654.75 and 1,114.13 is: 1,895.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    654.75 : 1,114.13 = 1,114.13 : x
  2. Step 2: Convert to fraction form
    654.75/1,114.13 = 1,114.13/x
  3. Step 3: Cross multiply
    654.75x = 1,114.13 × 1,114.13
  4. Step 4: Simplify right side
    654.75x = 1,241,274.52
  5. Step 5: Solve for x
    x = 1,241,274.52/654.75
  6. Step 6: Final answer
    x = 1,895.80

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Why These Related Problems?

These problems maintain the same ratio (1.70) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.