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Finding the Fourth Proportional to 25,241.92, 37,881.44 and 20,369.92

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Solution

The fourth proportional to 25,241.92, 37,881.44 and 20,369.92 is: 30,569.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,241.92 : 37,881.44 = 20,369.92 : x
  2. Step 2: Convert to fraction form
    25,241.92/37,881.44 = 20,369.92/x
  3. Step 3: Cross multiply
    25,241.92x = 37,881.44 × 20,369.92
  4. Step 4: Simplify right side
    25,241.92x = 771,641,902.28
  5. Step 5: Solve for x
    x = 771,641,902.28/25,241.92
  6. Step 6: Final answer
    x = 30,569.86

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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.