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Finding the Third Proportional to 561.94 and 863.16

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Solution

The third proportional to 561.94 and 863.16 is: 1,325.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    561.94 : 863.16 = 863.16 : x
  2. Step 2: Convert to fraction form
    561.94/863.16 = 863.16/x
  3. Step 3: Cross multiply
    561.94x = 863.16 × 863.16
  4. Step 4: Simplify right side
    561.94x = 745,038.71
  5. Step 5: Solve for x
    x = 745,038.71/561.94
  6. Step 6: Final answer
    x = 1,325.84

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.