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Finding the Fourth Proportional to 66,672.27, 92,007.77 and 37,991.12

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Solution

The fourth proportional to 66,672.27, 92,007.77 and 37,991.12 is: 52,427.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,672.27 : 92,007.77 = 37,991.12 : x
  2. Step 2: Convert to fraction form
    66,672.27/92,007.77 = 37,991.12/x
  3. Step 3: Cross multiply
    66,672.27x = 92,007.77 × 37,991.12
  4. Step 4: Simplify right side
    66,672.27x = 3,495,477,581.01
  5. Step 5: Solve for x
    x = 3,495,477,581.01/66,672.27
  6. Step 6: Final answer
    x = 52,427.76

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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.