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Finding the Third Proportional to 30,930.75 and 48,012.75

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Solution

The third proportional to 30,930.75 and 48,012.75 is: 74,528.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,930.75 : 48,012.75 = 48,012.75 : x
  2. Step 2: Convert to fraction form
    30,930.75/48,012.75 = 48,012.75/x
  3. Step 3: Cross multiply
    30,930.75x = 48,012.75 × 48,012.75
  4. Step 4: Simplify right side
    30,930.75x = 2,305,224,162.56
  5. Step 5: Solve for x
    x = 2,305,224,162.56/30,930.75
  6. Step 6: Final answer
    x = 74,528.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.