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Finding the Fourth Proportional to 62,731.36, 86,501.88 and 47,452.48

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Solution

The fourth proportional to 62,731.36, 86,501.88 and 47,452.48 is: 65,433.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,731.36 : 86,501.88 = 47,452.48 : x
  2. Step 2: Convert to fraction form
    62,731.36/86,501.88 = 47,452.48/x
  3. Step 3: Cross multiply
    62,731.36x = 86,501.88 × 47,452.48
  4. Step 4: Simplify right side
    62,731.36x = 4,104,728,730.66
  5. Step 5: Solve for x
    x = 4,104,728,730.66/62,731.36
  6. Step 6: Final answer
    x = 65,433.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.