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Finding the Fourth Proportional to 18,098.70, 27,126.45 and 7,568.70

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Solution

The fourth proportional to 18,098.70, 27,126.45 and 7,568.70 is: 11,344.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,098.70 : 27,126.45 = 7,568.70 : x
  2. Step 2: Convert to fraction form
    18,098.70/27,126.45 = 7,568.70/x
  3. Step 3: Cross multiply
    18,098.70x = 27,126.45 × 7,568.70
  4. Step 4: Simplify right side
    18,098.70x = 205,311,962.12
  5. Step 5: Solve for x
    x = 205,311,962.12/18,098.70
  6. Step 6: Final answer
    x = 11,344.02

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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.