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Finding the Fourth Proportional to 18,065.46, 27,091.46 and 6,215.93

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Solution

The fourth proportional to 18,065.46, 27,091.46 and 6,215.93 is: 9,321.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,065.46 : 27,091.46 = 6,215.93 : x
  2. Step 2: Convert to fraction form
    18,065.46/27,091.46 = 6,215.93/x
  3. Step 3: Cross multiply
    18,065.46x = 27,091.46 × 6,215.93
  4. Step 4: Simplify right side
    18,065.46x = 168,398,499.04
  5. Step 5: Solve for x
    x = 168,398,499.04/18,065.46
  6. Step 6: Final answer
    x = 9,321.57

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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.