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Finding the Fourth Proportional to 18,329.76, 27,487.80 and 7,232.76

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Solution

The fourth proportional to 18,329.76, 27,487.80 and 7,232.76 is: 10,846.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,329.76 : 27,487.80 = 7,232.76 : x
  2. Step 2: Convert to fraction form
    18,329.76/27,487.80 = 7,232.76/x
  3. Step 3: Cross multiply
    18,329.76x = 27,487.80 × 7,232.76
  4. Step 4: Simplify right side
    18,329.76x = 198,812,660.33
  5. Step 5: Solve for x
    x = 198,812,660.33/18,329.76
  6. Step 6: Final answer
    x = 10,846.44

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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.