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Finding the Fourth Proportional to 18,153.98, 27,223.97 and 7,059.18

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Solution

The fourth proportional to 18,153.98, 27,223.97 and 7,059.18 is: 10,586.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,153.98 : 27,223.97 = 7,059.18 : x
  2. Step 2: Convert to fraction form
    18,153.98/27,223.97 = 7,059.18/x
  3. Step 3: Cross multiply
    18,153.98x = 27,223.97 × 7,059.18
  4. Step 4: Simplify right side
    18,153.98x = 192,178,869.25
  5. Step 5: Solve for x
    x = 192,178,869.25/18,153.98
  6. Step 6: Final answer
    x = 10,586.05

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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.