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Finding the Fourth Proportional to 18,455.91, 27,697.26 and 7,365.76

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Solution

The fourth proportional to 18,455.91, 27,697.26 and 7,365.76 is: 11,053.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,455.91 : 27,697.26 = 7,365.76 : x
  2. Step 2: Convert to fraction form
    18,455.91/27,697.26 = 7,365.76/x
  3. Step 3: Cross multiply
    18,455.91x = 27,697.26 × 7,365.76
  4. Step 4: Simplify right side
    18,455.91x = 204,011,369.82
  5. Step 5: Solve for x
    x = 204,011,369.82/18,455.91
  6. Step 6: Final answer
    x = 11,053.99

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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.