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Finding the Fourth Proportional to 31,495, 43,463.12 and 17,347.86

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Solution

The fourth proportional to 31,495, 43,463.12 and 17,347.86 is: 23,940.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,495 : 43,463.12 = 17,347.86 : x
  2. Step 2: Convert to fraction form
    31,495/43,463.12 = 17,347.86/x
  3. Step 3: Cross multiply
    31,495x = 43,463.12 × 17,347.86
  4. Step 4: Simplify right side
    31,495x = 753,992,120.92
  5. Step 5: Solve for x
    x = 753,992,120.92/31,495
  6. Step 6: Final answer
    x = 23,940.06

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