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Finding the Fourth Proportional to 86,963.88, 120,012.09 and 48,726.27

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Solution

The fourth proportional to 86,963.88, 120,012.09 and 48,726.27 is: 67,243.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,963.88 : 120,012.09 = 48,726.27 : x
  2. Step 2: Convert to fraction form
    86,963.88/120,012.09 = 48,726.27/x
  3. Step 3: Cross multiply
    86,963.88x = 120,012.09 × 48,726.27
  4. Step 4: Simplify right side
    86,963.88x = 5,847,741,500.60
  5. Step 5: Solve for x
    x = 5,847,741,500.60/86,963.88
  6. Step 6: Final answer
    x = 67,243.34

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1.5x scale

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.