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Finding the Fourth Proportional to 29,111.81, 43,667.99 and 8,335.31

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Solution

The fourth proportional to 29,111.81, 43,667.99 and 8,335.31 is: 12,503.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,111.81 : 43,667.99 = 8,335.31 : x
  2. Step 2: Convert to fraction form
    29,111.81/43,667.99 = 8,335.31/x
  3. Step 3: Cross multiply
    29,111.81x = 43,667.99 × 8,335.31
  4. Step 4: Simplify right side
    29,111.81x = 363,986,192.05
  5. Step 5: Solve for x
    x = 363,986,192.05/29,111.81
  6. Step 6: Final answer
    x = 12,503.04

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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.