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Finding the Third Proportional to 472.75 and 957.50

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Solution

The third proportional to 472.75 and 957.50 is: 1,939.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    472.75 : 957.50 = 957.50 : x
  2. Step 2: Convert to fraction form
    472.75/957.50 = 957.50/x
  3. Step 3: Cross multiply
    472.75x = 957.50 × 957.50
  4. Step 4: Simplify right side
    472.75x = 916,806.25
  5. Step 5: Solve for x
    x = 916,806.25/472.75
  6. Step 6: Final answer
    x = 1,939.30

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.