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Finding the Fourth Proportional to 50,697.60, 76,039.20 and 17,419.20

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Solution

The fourth proportional to 50,697.60, 76,039.20 and 17,419.20 is: 26,126.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,697.60 : 76,039.20 = 17,419.20 : x
  2. Step 2: Convert to fraction form
    50,697.60/76,039.20 = 17,419.20/x
  3. Step 3: Cross multiply
    50,697.60x = 76,039.20 × 17,419.20
  4. Step 4: Simplify right side
    50,697.60x = 1,324,542,032.64
  5. Step 5: Solve for x
    x = 1,324,542,032.64/50,697.60
  6. Step 6: Final answer
    x = 26,126.33

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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.