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Finding the Fourth Proportional to 30,374.88, 41,907.50 and 16,943.96

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Solution

The fourth proportional to 30,374.88, 41,907.50 and 16,943.96 is: 23,377.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,374.88 : 41,907.50 = 16,943.96 : x
  2. Step 2: Convert to fraction form
    30,374.88/41,907.50 = 16,943.96/x
  3. Step 3: Cross multiply
    30,374.88x = 41,907.50 × 16,943.96
  4. Step 4: Simplify right side
    30,374.88x = 710,079,003.70
  5. Step 5: Solve for x
    x = 710,079,003.70/30,374.88
  6. Step 6: Final answer
    x = 23,377.18

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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.