Home / 66,910.27-92,340.26-38,617.78

Finding the Fourth Proportional to 66,910.27, 92,340.26 and 38,617.78

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Solution

The fourth proportional to 66,910.27, 92,340.26 and 38,617.78 is: 53,294.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,910.27 : 92,340.26 = 38,617.78 : x
  2. Step 2: Convert to fraction form
    66,910.27/92,340.26 = 38,617.78/x
  3. Step 3: Cross multiply
    66,910.27x = 92,340.26 × 38,617.78
  4. Step 4: Simplify right side
    66,910.27x = 3,565,975,845.82
  5. Step 5: Solve for x
    x = 3,565,975,845.82/66,910.27
  6. Step 6: Final answer
    x = 53,294.90

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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.