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Finding the Third Proportional to 901.69 and 969.19

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Solution

The third proportional to 901.69 and 969.19 is: 1,041.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    901.69 : 969.19 = 969.19 : x
  2. Step 2: Convert to fraction form
    901.69/969.19 = 969.19/x
  3. Step 3: Cross multiply
    901.69x = 969.19 × 969.19
  4. Step 4: Simplify right side
    901.69x = 939,324.41
  5. Step 5: Solve for x
    x = 939,324.41/901.69
  6. Step 6: Final answer
    x = 1,041.74

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Why These Related Problems?

These problems maintain the same ratio (1.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.