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Finding the Third Proportional to 919.13 and 1,953.56

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Solution

The third proportional to 919.13 and 1,953.56 is: 4,152.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    919.13 : 1,953.56 = 1,953.56 : x
  2. Step 2: Convert to fraction form
    919.13/1,953.56 = 1,953.56/x
  3. Step 3: Cross multiply
    919.13x = 1,953.56 × 1,953.56
  4. Step 4: Simplify right side
    919.13x = 3,816,406.44
  5. Step 5: Solve for x
    x = 3,816,406.44/919.13
  6. Step 6: Final answer
    x = 4,152.22

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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.