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Finding the Fourth Proportional to 29,056.56, 40,052.56 and 18,979.96

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Solution

The fourth proportional to 29,056.56, 40,052.56 and 18,979.96 is: 26,162.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,056.56 : 40,052.56 = 18,979.96 : x
  2. Step 2: Convert to fraction form
    29,056.56/40,052.56 = 18,979.96/x
  3. Step 3: Cross multiply
    29,056.56x = 40,052.56 × 18,979.96
  4. Step 4: Simplify right side
    29,056.56x = 760,195,986.70
  5. Step 5: Solve for x
    x = 760,195,986.70/29,056.56
  6. Step 6: Final answer
    x = 26,162.63

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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.