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Finding the Third Proportional to 1,145 and 2,437

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Solution

The third proportional to 1,145 and 2,437 is: 5,186.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145 : 2,437 = 2,437 : x
  2. Step 2: Convert to fraction form
    1,145/2,437 = 2,437/x
  3. Step 3: Cross multiply
    1,145x = 2,437 × 2,437
  4. Step 4: Simplify right side
    1,145x = 5,938,969
  5. Step 5: Solve for x
    x = 5,938,969/1,145
  6. Step 6: Final answer
    x = 5,186.87

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.