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Finding the Third Proportional to 1,214.58 and 2,659.92

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Solution

The third proportional to 1,214.58 and 2,659.92 is: 5,825.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214.58 : 2,659.92 = 2,659.92 : x
  2. Step 2: Convert to fraction form
    1,214.58/2,659.92 = 2,659.92/x
  3. Step 3: Cross multiply
    1,214.58x = 2,659.92 × 2,659.92
  4. Step 4: Simplify right side
    1,214.58x = 7,075,184.38
  5. Step 5: Solve for x
    x = 7,075,184.38/1,214.58
  6. Step 6: Final answer
    x = 5,825.22

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.