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Finding the Fourth Proportional to 57,351.70, 86,039.70 and 17,367.40

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Solution

The fourth proportional to 57,351.70, 86,039.70 and 17,367.40 is: 26,054.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,351.70 : 86,039.70 = 17,367.40 : x
  2. Step 2: Convert to fraction form
    57,351.70/86,039.70 = 17,367.40/x
  3. Step 3: Cross multiply
    57,351.70x = 86,039.70 × 17,367.40
  4. Step 4: Simplify right side
    57,351.70x = 1,494,285,885.78
  5. Step 5: Solve for x
    x = 1,494,285,885.78/57,351.70
  6. Step 6: Final answer
    x = 26,054.78

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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.