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Finding the Third Proportional to 556.24 and 1,199.81

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Solution

The third proportional to 556.24 and 1,199.81 is: 2,587.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    556.24 : 1,199.81 = 1,199.81 : x
  2. Step 2: Convert to fraction form
    556.24/1,199.81 = 1,199.81/x
  3. Step 3: Cross multiply
    556.24x = 1,199.81 × 1,199.81
  4. Step 4: Simplify right side
    556.24x = 1,439,550.04
  5. Step 5: Solve for x
    x = 1,439,550.04/556.24
  6. Step 6: Final answer
    x = 2,587.99

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.