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Finding the Third Proportional to 1,621.13 and 2,435.63

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Solution

The third proportional to 1,621.13 and 2,435.63 is: 3,659.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621.13 : 2,435.63 = 2,435.63 : x
  2. Step 2: Convert to fraction form
    1,621.13/2,435.63 = 2,435.63/x
  3. Step 3: Cross multiply
    1,621.13x = 2,435.63 × 2,435.63
  4. Step 4: Simplify right side
    1,621.13x = 5,932,269.14
  5. Step 5: Solve for x
    x = 5,932,269.14/1,621.13
  6. Step 6: Final answer
    x = 3,659.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.