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Finding the Third Proportional to 749.63 and 1,173.28

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Solution

The third proportional to 749.63 and 1,173.28 is: 1,836.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    749.63 : 1,173.28 = 1,173.28 : x
  2. Step 2: Convert to fraction form
    749.63/1,173.28 = 1,173.28/x
  3. Step 3: Cross multiply
    749.63x = 1,173.28 × 1,173.28
  4. Step 4: Simplify right side
    749.63x = 1,376,588.89
  5. Step 5: Solve for x
    x = 1,376,588.89/749.63
  6. Step 6: Final answer
    x = 1,836.37

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.