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Finding the Third Proportional to 49,389.75 and 70,578

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Solution

The third proportional to 49,389.75 and 70,578 is: 100,856.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,389.75 : 70,578 = 70,578 : x
  2. Step 2: Convert to fraction form
    49,389.75/70,578 = 70,578/x
  3. Step 3: Cross multiply
    49,389.75x = 70,578 × 70,578
  4. Step 4: Simplify right side
    49,389.75x = 4,981,254,084
  5. Step 5: Solve for x
    x = 4,981,254,084/49,389.75
  6. Step 6: Final answer
    x = 100,856.03

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.