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Finding the Fourth Proportional to 53,312.52, 80,020.62 and 25,629.96

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Solution

The fourth proportional to 53,312.52, 80,020.62 and 25,629.96 is: 38,469.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,312.52 : 80,020.62 = 25,629.96 : x
  2. Step 2: Convert to fraction form
    53,312.52/80,020.62 = 25,629.96/x
  3. Step 3: Cross multiply
    53,312.52x = 80,020.62 × 25,629.96
  4. Step 4: Simplify right side
    53,312.52x = 2,050,925,289.78
  5. Step 5: Solve for x
    x = 2,050,925,289.78/53,312.52
  6. Step 6: Final answer
    x = 38,469.86

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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.