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Finding the Fourth Proportional to 50,347.21, 69,479.05 and 28,843.92

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Solution

The fourth proportional to 50,347.21, 69,479.05 and 28,843.92 is: 39,804.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,347.21 : 69,479.05 = 28,843.92 : x
  2. Step 2: Convert to fraction form
    50,347.21/69,479.05 = 28,843.92/x
  3. Step 3: Cross multiply
    50,347.21x = 69,479.05 × 28,843.92
  4. Step 4: Simplify right side
    50,347.21x = 2,004,047,986.18
  5. Step 5: Solve for x
    x = 2,004,047,986.18/50,347.21
  6. Step 6: Final answer
    x = 39,804.55

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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.