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Finding the Third Proportional to 1,118.63 and 2,419.13

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Solution

The third proportional to 1,118.63 and 2,419.13 is: 5,231.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118.63 : 2,419.13 = 2,419.13 : x
  2. Step 2: Convert to fraction form
    1,118.63/2,419.13 = 2,419.13/x
  3. Step 3: Cross multiply
    1,118.63x = 2,419.13 × 2,419.13
  4. Step 4: Simplify right side
    1,118.63x = 5,852,165.77
  5. Step 5: Solve for x
    x = 5,852,165.77/1,118.63
  6. Step 6: Final answer
    x = 5,231.57

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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.