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Finding the Fourth Proportional to 18,562.17, 27,806.17 and 11,162.58

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Solution

The fourth proportional to 18,562.17, 27,806.17 and 11,162.58 is: 16,721.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,562.17 : 27,806.17 = 11,162.58 : x
  2. Step 2: Convert to fraction form
    18,562.17/27,806.17 = 11,162.58/x
  3. Step 3: Cross multiply
    18,562.17x = 27,806.17 × 11,162.58
  4. Step 4: Simplify right side
    18,562.17x = 310,388,597.12
  5. Step 5: Solve for x
    x = 310,388,597.12/18,562.17
  6. Step 6: Final answer
    x = 16,721.57

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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.