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Finding the Fourth Proportional to 29,721.82, 44,551.29 and 10,989.82

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Solution

The fourth proportional to 29,721.82, 44,551.29 and 10,989.82 is: 16,473.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,721.82 : 44,551.29 = 10,989.82 : x
  2. Step 2: Convert to fraction form
    29,721.82/44,551.29 = 10,989.82/x
  3. Step 3: Cross multiply
    29,721.82x = 44,551.29 × 10,989.82
  4. Step 4: Simplify right side
    29,721.82x = 489,610,657.87
  5. Step 5: Solve for x
    x = 489,610,657.87/29,721.82
  6. Step 6: Final answer
    x = 16,473.10

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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.