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Finding the Fourth Proportional to 18,264.70, 27,409.20 and 10,367.20

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Solution

The fourth proportional to 18,264.70, 27,409.20 and 10,367.20 is: 15,557.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,264.70 : 27,409.20 = 10,367.20 : x
  2. Step 2: Convert to fraction form
    18,264.70/27,409.20 = 10,367.20/x
  3. Step 3: Cross multiply
    18,264.70x = 27,409.20 × 10,367.20
  4. Step 4: Simplify right side
    18,264.70x = 284,156,658.24
  5. Step 5: Solve for x
    x = 284,156,658.24/18,264.70
  6. Step 6: Final answer
    x = 15,557.70

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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.