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Finding the Third Proportional to 483.75 and 724.50

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Solution

The third proportional to 483.75 and 724.50 is: 1,085.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.75 : 724.50 = 724.50 : x
  2. Step 2: Convert to fraction form
    483.75/724.50 = 724.50/x
  3. Step 3: Cross multiply
    483.75x = 724.50 × 724.50
  4. Step 4: Simplify right side
    483.75x = 524,900.25
  5. Step 5: Solve for x
    x = 524,900.25/483.75
  6. Step 6: Final answer
    x = 1,085.07

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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.