Home / 18,322.41-27,480.60-5,175.69

Finding the Fourth Proportional to 18,322.41, 27,480.60 and 5,175.69

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Solution

The fourth proportional to 18,322.41, 27,480.60 and 5,175.69 is: 7,762.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,322.41 : 27,480.60 = 5,175.69 : x
  2. Step 2: Convert to fraction form
    18,322.41/27,480.60 = 5,175.69/x
  3. Step 3: Cross multiply
    18,322.41x = 27,480.60 × 5,175.69
  4. Step 4: Simplify right side
    18,322.41x = 142,231,066.61
  5. Step 5: Solve for x
    x = 142,231,066.61/18,322.41
  6. Step 6: Final answer
    x = 7,762.68

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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.