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Finding the Fourth Proportional to 50,486.87, 75,743.94 and 15,425.57

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Solution

The fourth proportional to 50,486.87, 75,743.94 and 15,425.57 is: 23,142.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,486.87 : 75,743.94 = 15,425.57 : x
  2. Step 2: Convert to fraction form
    50,486.87/75,743.94 = 15,425.57/x
  3. Step 3: Cross multiply
    50,486.87x = 75,743.94 × 15,425.57
  4. Step 4: Simplify right side
    50,486.87x = 1,168,393,448.55
  5. Step 5: Solve for x
    x = 1,168,393,448.55/50,486.87
  6. Step 6: Final answer
    x = 23,142.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.