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Finding the Fourth Proportional to 18,502.93, 27,756.14 and 5,175.93

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Solution

The fourth proportional to 18,502.93, 27,756.14 and 5,175.93 is: 7,764.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,502.93 : 27,756.14 = 5,175.93 : x
  2. Step 2: Convert to fraction form
    18,502.93/27,756.14 = 5,175.93/x
  3. Step 3: Cross multiply
    18,502.93x = 27,756.14 × 5,175.93
  4. Step 4: Simplify right side
    18,502.93x = 143,663,837.71
  5. Step 5: Solve for x
    x = 143,663,837.71/18,502.93
  6. Step 6: Final answer
    x = 7,764.38

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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.