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Finding the Fourth Proportional to 50,683.44, 69,942 and 28,021.44

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Solution

The fourth proportional to 50,683.44, 69,942 and 28,021.44 is: 38,668.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,683.44 : 69,942 = 28,021.44 : x
  2. Step 2: Convert to fraction form
    50,683.44/69,942 = 28,021.44/x
  3. Step 3: Cross multiply
    50,683.44x = 69,942 × 28,021.44
  4. Step 4: Simplify right side
    50,683.44x = 1,959,875,556.48
  5. Step 5: Solve for x
    x = 1,959,875,556.48/50,683.44
  6. Step 6: Final answer
    x = 38,668.95

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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.