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Finding the Fourth Proportional to 50,891.90, 70,230.33 and 28,230.93

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Solution

The fourth proportional to 50,891.90, 70,230.33 and 28,230.93 is: 38,958.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,891.90 : 70,230.33 = 28,230.93 : x
  2. Step 2: Convert to fraction form
    50,891.90/70,230.33 = 28,230.93/x
  3. Step 3: Cross multiply
    50,891.90x = 70,230.33 × 28,230.93
  4. Step 4: Simplify right side
    50,891.90x = 1,982,667,530.11
  5. Step 5: Solve for x
    x = 1,982,667,530.11/50,891.90
  6. Step 6: Final answer
    x = 38,958.41

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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.