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Finding the Fourth Proportional to 33,342.30, 50,122.80 and 28,530.90

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Solution

The fourth proportional to 33,342.30, 50,122.80 and 28,530.90 is: 42,889.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,342.30 : 50,122.80 = 28,530.90 : x
  2. Step 2: Convert to fraction form
    33,342.30/50,122.80 = 28,530.90/x
  3. Step 3: Cross multiply
    33,342.30x = 50,122.80 × 28,530.90
  4. Step 4: Simplify right side
    33,342.30x = 1,430,048,594.52
  5. Step 5: Solve for x
    x = 1,430,048,594.52/33,342.30
  6. Step 6: Final answer
    x = 42,889.92

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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.