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Finding the Fourth Proportional to 68,658.26, 94,745.77 and 38,440.76

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Solution

The fourth proportional to 68,658.26, 94,745.77 and 38,440.76 is: 53,046.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,658.26 : 94,745.77 = 38,440.76 : x
  2. Step 2: Convert to fraction form
    68,658.26/94,745.77 = 38,440.76/x
  3. Step 3: Cross multiply
    68,658.26x = 94,745.77 × 38,440.76
  4. Step 4: Simplify right side
    68,658.26x = 3,642,098,835.75
  5. Step 5: Solve for x
    x = 3,642,098,835.75/68,658.26
  6. Step 6: Final answer
    x = 53,046.77

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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.