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Finding the Fourth Proportional to 49,331.55, 73,985.02 and 19,351.89

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Solution

The fourth proportional to 49,331.55, 73,985.02 and 19,351.89 is: 29,023.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,331.55 : 73,985.02 = 19,351.89 : x
  2. Step 2: Convert to fraction form
    49,331.55/73,985.02 = 19,351.89/x
  3. Step 3: Cross multiply
    49,331.55x = 73,985.02 × 19,351.89
  4. Step 4: Simplify right side
    49,331.55x = 1,431,749,968.69
  5. Step 5: Solve for x
    x = 1,431,749,968.69/49,331.55
  6. Step 6: Final answer
    x = 29,023.01

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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.