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Finding the Fourth Proportional to 66,791.74, 92,183.03 and 38,111.37

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Solution

The fourth proportional to 66,791.74, 92,183.03 and 38,111.37 is: 52,599.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,791.74 : 92,183.03 = 38,111.37 : x
  2. Step 2: Convert to fraction form
    66,791.74/92,183.03 = 38,111.37/x
  3. Step 3: Cross multiply
    66,791.74x = 92,183.03 × 38,111.37
  4. Step 4: Simplify right side
    66,791.74x = 3,513,221,564.05
  5. Step 5: Solve for x
    x = 3,513,221,564.05/66,791.74
  6. Step 6: Final answer
    x = 52,599.64

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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.