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Finding the Fourth Proportional to 31,655.66, 43,655.91 and 27,177.98

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Solution

The fourth proportional to 31,655.66, 43,655.91 and 27,177.98 is: 37,480.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,655.66 : 43,655.91 = 27,177.98 : x
  2. Step 2: Convert to fraction form
    31,655.66/43,655.91 = 27,177.98/x
  3. Step 3: Cross multiply
    31,655.66x = 43,655.91 × 27,177.98
  4. Step 4: Simplify right side
    31,655.66x = 1,186,479,448.86
  5. Step 5: Solve for x
    x = 1,186,479,448.86/31,655.66
  6. Step 6: Final answer
    x = 37,480.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.