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Finding the Fourth Proportional to 20,274.52, 30,411.94 and 5,483.56

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Solution

The fourth proportional to 20,274.52, 30,411.94 and 5,483.56 is: 8,225.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,274.52 : 30,411.94 = 5,483.56 : x
  2. Step 2: Convert to fraction form
    20,274.52/30,411.94 = 5,483.56/x
  3. Step 3: Cross multiply
    20,274.52x = 30,411.94 × 5,483.56
  4. Step 4: Simplify right side
    20,274.52x = 166,765,741.17
  5. Step 5: Solve for x
    x = 166,765,741.17/20,274.52
  6. Step 6: Final answer
    x = 8,225.39

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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.