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Finding the Third Proportional to 568.75 and 918.50

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Solution

The third proportional to 568.75 and 918.50 is: 1,483.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    568.75 : 918.50 = 918.50 : x
  2. Step 2: Convert to fraction form
    568.75/918.50 = 918.50/x
  3. Step 3: Cross multiply
    568.75x = 918.50 × 918.50
  4. Step 4: Simplify right side
    568.75x = 843,642.25
  5. Step 5: Solve for x
    x = 843,642.25/568.75
  6. Step 6: Final answer
    x = 1,483.33

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.