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Finding the Fourth Proportional to 50,673.28, 69,925.20 and 28,012

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Solution

The fourth proportional to 50,673.28, 69,925.20 and 28,012 is: 38,654.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,673.28 : 69,925.20 = 28,012 : x
  2. Step 2: Convert to fraction form
    50,673.28/69,925.20 = 28,012/x
  3. Step 3: Cross multiply
    50,673.28x = 69,925.20 × 28,012
  4. Step 4: Simplify right side
    50,673.28x = 1,958,744,702.40
  5. Step 5: Solve for x
    x = 1,958,744,702.40/50,673.28
  6. Step 6: Final answer
    x = 38,654.39

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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.