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Finding the Third Proportional to 474.75 and 712.13

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Solution

The third proportional to 474.75 and 712.13 is: 1,068.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    474.75 : 712.13 = 712.13 : x
  2. Step 2: Convert to fraction form
    474.75/712.13 = 712.13/x
  3. Step 3: Cross multiply
    474.75x = 712.13 × 712.13
  4. Step 4: Simplify right side
    474.75x = 507,122.02
  5. Step 5: Solve for x
    x = 507,122.02/474.75
  6. Step 6: Final answer
    x = 1,068.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.