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Finding the Third Proportional to 1,393.75 and 3,037.75

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Solution

The third proportional to 1,393.75 and 3,037.75 is: 6,620.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393.75 : 3,037.75 = 3,037.75 : x
  2. Step 2: Convert to fraction form
    1,393.75/3,037.75 = 3,037.75/x
  3. Step 3: Cross multiply
    1,393.75x = 3,037.75 × 3,037.75
  4. Step 4: Simplify right side
    1,393.75x = 9,227,925.06
  5. Step 5: Solve for x
    x = 9,227,925.06/1,393.75
  6. Step 6: Final answer
    x = 6,620.93

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.