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Finding the Fourth Proportional to 18,454,905.90, 27,682,358.85 and 17,392,023.90

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Solution

The fourth proportional to 18,454,905.90, 27,682,358.85 and 17,392,023.90 is: 26,088,035.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,454,905.90 : 27,682,358.85 = 17,392,023.90 : x
  2. Step 2: Convert to fraction form
    18,454,905.90/27,682,358.85 = 17,392,023.90/x
  3. Step 3: Cross multiply
    18,454,905.90x = 27,682,358.85 × 17,392,023.90
  4. Step 4: Simplify right side
    18,454,905.90x = 481,452,246,727,576.50
  5. Step 5: Solve for x
    x = 481,452,246,727,576.50/18,454,905.90
  6. Step 6: Final answer
    x = 26,088,035.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.