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Finding the Fourth Proportional to 18,355.17, 27,516.06 and 6,665.67

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Solution

The fourth proportional to 18,355.17, 27,516.06 and 6,665.67 is: 9,992.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,355.17 : 27,516.06 = 6,665.67 : x
  2. Step 2: Convert to fraction form
    18,355.17/27,516.06 = 6,665.67/x
  3. Step 3: Cross multiply
    18,355.17x = 27,516.06 × 6,665.67
  4. Step 4: Simplify right side
    18,355.17x = 183,412,975.66
  5. Step 5: Solve for x
    x = 183,412,975.66/18,355.17
  6. Step 6: Final answer
    x = 9,992.44

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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.