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Finding the Third Proportional to 905.55 and 1,332.70

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Solution

The third proportional to 905.55 and 1,332.70 is: 1,961.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    905.55 : 1,332.70 = 1,332.70 : x
  2. Step 2: Convert to fraction form
    905.55/1,332.70 = 1,332.70/x
  3. Step 3: Cross multiply
    905.55x = 1,332.70 × 1,332.70
  4. Step 4: Simplify right side
    905.55x = 1,776,097.62
  5. Step 5: Solve for x
    x = 1,776,097.62/905.55
  6. Step 6: Final answer
    x = 1,961.34

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.