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Finding the Fourth Proportional to 19,761.93, 29,648.07 and 5,910.93

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Solution

The fourth proportional to 19,761.93, 29,648.07 and 5,910.93 is: 8,867.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,761.93 : 29,648.07 = 5,910.93 : x
  2. Step 2: Convert to fraction form
    19,761.93/29,648.07 = 5,910.93/x
  3. Step 3: Cross multiply
    19,761.93x = 29,648.07 × 5,910.93
  4. Step 4: Simplify right side
    19,761.93x = 175,247,666.41
  5. Step 5: Solve for x
    x = 175,247,666.41/19,761.93
  6. Step 6: Final answer
    x = 8,867.94

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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.