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Finding the Fourth Proportional to 55,072.92, 82,609.02 and 15,630.06

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Solution

The fourth proportional to 55,072.92, 82,609.02 and 15,630.06 is: 23,444.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,072.92 : 82,609.02 = 15,630.06 : x
  2. Step 2: Convert to fraction form
    55,072.92/82,609.02 = 15,630.06/x
  3. Step 3: Cross multiply
    55,072.92x = 82,609.02 × 15,630.06
  4. Step 4: Simplify right side
    55,072.92x = 1,291,183,939.14
  5. Step 5: Solve for x
    x = 1,291,183,939.14/55,072.92
  6. Step 6: Final answer
    x = 23,444.99

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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.