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Finding the Fourth Proportional to 18,535.70, 27,803.46 and 6,223.70

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Solution

The fourth proportional to 18,535.70, 27,803.46 and 6,223.70 is: 9,335.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,535.70 : 27,803.46 = 6,223.70 : x
  2. Step 2: Convert to fraction form
    18,535.70/27,803.46 = 6,223.70/x
  3. Step 3: Cross multiply
    18,535.70x = 27,803.46 × 6,223.70
  4. Step 4: Simplify right side
    18,535.70x = 173,040,394.00
  5. Step 5: Solve for x
    x = 173,040,394.00/18,535.70
  6. Step 6: Final answer
    x = 9,335.52

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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.