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Finding the Third Proportional to 563.50 and 931

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Solution

The third proportional to 563.50 and 931 is: 1,538.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    563.50 : 931 = 931 : x
  2. Step 2: Convert to fraction form
    563.50/931 = 931/x
  3. Step 3: Cross multiply
    563.50x = 931 × 931
  4. Step 4: Simplify right side
    563.50x = 866,761
  5. Step 5: Solve for x
    x = 866,761/563.50
  6. Step 6: Final answer
    x = 1,538.17

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Why These Related Problems?

These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.