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Finding the Fourth Proportional to 18,501.93, 27,754.64 and 5,174.93

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Solution

The fourth proportional to 18,501.93, 27,754.64 and 5,174.93 is: 7,762.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,501.93 : 27,754.64 = 5,174.93 : x
  2. Step 2: Convert to fraction form
    18,501.93/27,754.64 = 5,174.93/x
  3. Step 3: Cross multiply
    18,501.93x = 27,754.64 × 5,174.93
  4. Step 4: Simplify right side
    18,501.93x = 143,628,180.40
  5. Step 5: Solve for x
    x = 143,628,180.40/18,501.93
  6. Step 6: Final answer
    x = 7,762.88

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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.