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Finding the Fourth Proportional to 66,790.52, 92,179.44 and 38,496.41

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Solution

The fourth proportional to 66,790.52, 92,179.44 and 38,496.41 is: 53,129.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,790.52 : 92,179.44 = 38,496.41 : x
  2. Step 2: Convert to fraction form
    66,790.52/92,179.44 = 38,496.41/x
  3. Step 3: Cross multiply
    66,790.52x = 92,179.44 × 38,496.41
  4. Step 4: Simplify right side
    66,790.52x = 3,548,577,054.91
  5. Step 5: Solve for x
    x = 3,548,577,054.91/66,790.52
  6. Step 6: Final answer
    x = 53,129.95

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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.