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Finding the Third Proportional to 582 and 873.75

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Solution

The third proportional to 582 and 873.75 is: 1,311.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    582 : 873.75 = 873.75 : x
  2. Step 2: Convert to fraction form
    582/873.75 = 873.75/x
  3. Step 3: Cross multiply
    582x = 873.75 × 873.75
  4. Step 4: Simplify right side
    582x = 763,439.06
  5. Step 5: Solve for x
    x = 763,439.06/582
  6. Step 6: Final answer
    x = 1,311.75

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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.