Home / 66,880.44-92,276.82-39,999.24

Finding the Fourth Proportional to 66,880.44, 92,276.82 and 39,999.24

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Solution

The fourth proportional to 66,880.44, 92,276.82 and 39,999.24 is: 55,188.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,880.44 : 92,276.82 = 39,999.24 : x
  2. Step 2: Convert to fraction form
    66,880.44/92,276.82 = 39,999.24/x
  3. Step 3: Cross multiply
    66,880.44x = 92,276.82 × 39,999.24
  4. Step 4: Simplify right side
    66,880.44x = 3,691,002,669.62
  5. Step 5: Solve for x
    x = 3,691,002,669.62/66,880.44
  6. Step 6: Final answer
    x = 55,188.07

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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.