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Finding the Fourth Proportional to 60,904.80, 91,353.96 and 19,348.56

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Solution

The fourth proportional to 60,904.80, 91,353.96 and 19,348.56 is: 29,021.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,904.80 : 91,353.96 = 19,348.56 : x
  2. Step 2: Convert to fraction form
    60,904.80/91,353.96 = 19,348.56/x
  3. Step 3: Cross multiply
    60,904.80x = 91,353.96 × 19,348.56
  4. Step 4: Simplify right side
    60,904.80x = 1,767,567,576.30
  5. Step 5: Solve for x
    x = 1,767,567,576.30/60,904.80
  6. Step 6: Final answer
    x = 29,021.81

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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.