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Finding the Fourth Proportional to 29,918.42, 44,877.81 and 9,141.92

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Solution

The fourth proportional to 29,918.42, 44,877.81 and 9,141.92 is: 13,712.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,918.42 : 44,877.81 = 9,141.92 : x
  2. Step 2: Convert to fraction form
    29,918.42/44,877.81 = 9,141.92/x
  3. Step 3: Cross multiply
    29,918.42x = 44,877.81 × 9,141.92
  4. Step 4: Simplify right side
    29,918.42x = 410,269,348.80
  5. Step 5: Solve for x
    x = 410,269,348.80/29,918.42
  6. Step 6: Final answer
    x = 13,712.94

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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.