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Finding the Third Proportional to 572 and 864.25

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Solution

The third proportional to 572 and 864.25 is: 1,305.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    572 : 864.25 = 864.25 : x
  2. Step 2: Convert to fraction form
    572/864.25 = 864.25/x
  3. Step 3: Cross multiply
    572x = 864.25 × 864.25
  4. Step 4: Simplify right side
    572x = 746,928.06
  5. Step 5: Solve for x
    x = 746,928.06/572
  6. Step 6: Final answer
    x = 1,305.82

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.