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Finding the Third Proportional to 740.81 and 1,572.75

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Solution

The third proportional to 740.81 and 1,572.75 is: 3,338.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    740.81 : 1,572.75 = 1,572.75 : x
  2. Step 2: Convert to fraction form
    740.81/1,572.75 = 1,572.75/x
  3. Step 3: Cross multiply
    740.81x = 1,572.75 × 1,572.75
  4. Step 4: Simplify right side
    740.81x = 2,473,542.56
  5. Step 5: Solve for x
    x = 2,473,542.56/740.81
  6. Step 6: Final answer
    x = 3,338.96

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.