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Finding the Fourth Proportional to 31,745.52, 47,625.45 and 15,958.11

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Solution

The fourth proportional to 31,745.52, 47,625.45 and 15,958.11 is: 23,940.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,745.52 : 47,625.45 = 15,958.11 : x
  2. Step 2: Convert to fraction form
    31,745.52/47,625.45 = 15,958.11/x
  3. Step 3: Cross multiply
    31,745.52x = 47,625.45 × 15,958.11
  4. Step 4: Simplify right side
    31,745.52x = 760,012,289.12
  5. Step 5: Solve for x
    x = 760,012,289.12/31,745.52
  6. Step 6: Final answer
    x = 23,940.77

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1.5x scale

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.