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Finding the Fourth Proportional to 31,808.66, 43,897.29 and 17,662.82

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Solution

The fourth proportional to 31,808.66, 43,897.29 and 17,662.82 is: 24,375.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,808.66 : 43,897.29 = 17,662.82 : x
  2. Step 2: Convert to fraction form
    31,808.66/43,897.29 = 17,662.82/x
  3. Step 3: Cross multiply
    31,808.66x = 43,897.29 × 17,662.82
  4. Step 4: Simplify right side
    31,808.66x = 775,349,931.76
  5. Step 5: Solve for x
    x = 775,349,931.76/31,808.66
  6. Step 6: Final answer
    x = 24,375.44

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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.