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Finding the Third Proportional to 935.46 and 1,396.78

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Solution

The third proportional to 935.46 and 1,396.78 is: 2,085.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    935.46 : 1,396.78 = 1,396.78 : x
  2. Step 2: Convert to fraction form
    935.46/1,396.78 = 1,396.78/x
  3. Step 3: Cross multiply
    935.46x = 1,396.78 × 1,396.78
  4. Step 4: Simplify right side
    935.46x = 1,950,981.49
  5. Step 5: Solve for x
    x = 1,950,981.49/935.46
  6. Step 6: Final answer
    x = 2,085.60

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.