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Finding the Third Proportional to 19,455.19 and 20,844.84

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Solution

The third proportional to 19,455.19 and 20,844.84 is: 22,333.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,455.19 : 20,844.84 = 20,844.84 : x
  2. Step 2: Convert to fraction form
    19,455.19/20,844.84 = 20,844.84/x
  3. Step 3: Cross multiply
    19,455.19x = 20,844.84 × 20,844.84
  4. Step 4: Simplify right side
    19,455.19x = 434,507,510.96
  5. Step 5: Solve for x
    x = 434,507,510.96/19,455.19
  6. Step 6: Final answer
    x = 22,333.76

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1.5x scale

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.