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Finding the Fourth Proportional to 31,703.68, 43,751.37 and 19,126

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Solution

The fourth proportional to 31,703.68, 43,751.37 and 19,126 is: 26,394.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,703.68 : 43,751.37 = 19,126 : x
  2. Step 2: Convert to fraction form
    31,703.68/43,751.37 = 19,126/x
  3. Step 3: Cross multiply
    31,703.68x = 43,751.37 × 19,126
  4. Step 4: Simplify right side
    31,703.68x = 836,788,702.62
  5. Step 5: Solve for x
    x = 836,788,702.62/31,703.68
  6. Step 6: Final answer
    x = 26,394.06

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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.