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Finding the Fourth Proportional to 67,129.99, 92,640.04 and 36,915.52

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Solution

The fourth proportional to 67,129.99, 92,640.04 and 36,915.52 is: 50,943.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,129.99 : 92,640.04 = 36,915.52 : x
  2. Step 2: Convert to fraction form
    67,129.99/92,640.04 = 36,915.52/x
  3. Step 3: Cross multiply
    67,129.99x = 92,640.04 × 36,915.52
  4. Step 4: Simplify right side
    67,129.99x = 3,419,854,601.64
  5. Step 5: Solve for x
    x = 3,419,854,601.64/67,129.99
  6. Step 6: Final answer
    x = 50,943.77

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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.