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Finding the Fourth Proportional to 18,640.94, 27,966.26 and 6,954.26

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Solution

The fourth proportional to 18,640.94, 27,966.26 and 6,954.26 is: 10,433.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,640.94 : 27,966.26 = 6,954.26 : x
  2. Step 2: Convert to fraction form
    18,640.94/27,966.26 = 6,954.26/x
  3. Step 3: Cross multiply
    18,640.94x = 27,966.26 × 6,954.26
  4. Step 4: Simplify right side
    18,640.94x = 194,484,643.27
  5. Step 5: Solve for x
    x = 194,484,643.27/18,640.94
  6. Step 6: Final answer
    x = 10,433.20

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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.