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Finding the Fourth Proportional to 50,687.19, 69,942.22 and 28,023.12

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Solution

The fourth proportional to 50,687.19, 69,942.22 and 28,023.12 is: 38,668.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,687.19 : 69,942.22 = 28,023.12 : x
  2. Step 2: Convert to fraction form
    50,687.19/69,942.22 = 28,023.12/x
  3. Step 3: Cross multiply
    50,687.19x = 69,942.22 × 28,023.12
  4. Step 4: Simplify right side
    50,687.19x = 1,959,999,154.07
  5. Step 5: Solve for x
    x = 1,959,999,154.07/50,687.19
  6. Step 6: Final answer
    x = 38,668.53

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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.