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Finding the Fourth Proportional to 18,329.70, 27,489.15 and 7,232.70

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Solution

The fourth proportional to 18,329.70, 27,489.15 and 7,232.70 is: 10,846.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,329.70 : 27,489.15 = 7,232.70 : x
  2. Step 2: Convert to fraction form
    18,329.70/27,489.15 = 7,232.70/x
  3. Step 3: Cross multiply
    18,329.70x = 27,489.15 × 7,232.70
  4. Step 4: Simplify right side
    18,329.70x = 198,820,775.21
  5. Step 5: Solve for x
    x = 198,820,775.21/18,329.70
  6. Step 6: Final answer
    x = 10,846.92

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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.