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Finding the Third Proportional to 1,574.44 and 3,586.78

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Solution

The third proportional to 1,574.44 and 3,586.78 is: 8,171.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,574.44 : 3,586.78 = 3,586.78 : x
  2. Step 2: Convert to fraction form
    1,574.44/3,586.78 = 3,586.78/x
  3. Step 3: Cross multiply
    1,574.44x = 3,586.78 × 3,586.78
  4. Step 4: Simplify right side
    1,574.44x = 12,864,999.74
  5. Step 5: Solve for x
    x = 12,864,999.74/1,574.44
  6. Step 6: Final answer
    x = 8,171.17

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Why These Related Problems?

These problems maintain the same ratio (2.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.