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Finding the Fourth Proportional to 37,990.72, 56,982.08 and 15,790.08

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Solution

The fourth proportional to 37,990.72, 56,982.08 and 15,790.08 is: 23,683.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,990.72 : 56,982.08 = 15,790.08 : x
  2. Step 2: Convert to fraction form
    37,990.72/56,982.08 = 15,790.08/x
  3. Step 3: Cross multiply
    37,990.72x = 56,982.08 × 15,790.08
  4. Step 4: Simplify right side
    37,990.72x = 899,751,601.77
  5. Step 5: Solve for x
    x = 899,751,601.77/37,990.72
  6. Step 6: Final answer
    x = 23,683.46

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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.