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Finding the Third Proportional to 1,143.56 and 2,547.84

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Solution

The third proportional to 1,143.56 and 2,547.84 is: 5,676.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143.56 : 2,547.84 = 2,547.84 : x
  2. Step 2: Convert to fraction form
    1,143.56/2,547.84 = 2,547.84/x
  3. Step 3: Cross multiply
    1,143.56x = 2,547.84 × 2,547.84
  4. Step 4: Simplify right side
    1,143.56x = 6,491,507.77
  5. Step 5: Solve for x
    x = 6,491,507.77/1,143.56
  6. Step 6: Final answer
    x = 5,676.57

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.