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Finding the Fourth Proportional to 80,085.94, 110,500.22 and 47,814.27

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Solution

The fourth proportional to 80,085.94, 110,500.22 and 47,814.27 is: 65,972.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,085.94 : 110,500.22 = 47,814.27 : x
  2. Step 2: Convert to fraction form
    80,085.94/110,500.22 = 47,814.27/x
  3. Step 3: Cross multiply
    80,085.94x = 110,500.22 × 47,814.27
  4. Step 4: Simplify right side
    80,085.94x = 5,283,487,059.30
  5. Step 5: Solve for x
    x = 5,283,487,059.30/80,085.94
  6. Step 6: Final answer
    x = 65,972.72

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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.