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Finding the Third Proportional to 485.37 and 1,039.08

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Solution

The third proportional to 485.37 and 1,039.08 is: 2,224.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    485.37 : 1,039.08 = 1,039.08 : x
  2. Step 2: Convert to fraction form
    485.37/1,039.08 = 1,039.08/x
  3. Step 3: Cross multiply
    485.37x = 1,039.08 × 1,039.08
  4. Step 4: Simplify right side
    485.37x = 1,079,683.35
  5. Step 5: Solve for x
    x = 1,079,683.35/485.37
  6. Step 6: Final answer
    x = 2,224.47

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.