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Finding the Fourth Proportional to 57,053.87, 78,707.81 and 36,917.25

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Solution

The fourth proportional to 57,053.87, 78,707.81 and 36,917.25 is: 50,928.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,053.87 : 78,707.81 = 36,917.25 : x
  2. Step 2: Convert to fraction form
    57,053.87/78,707.81 = 36,917.25/x
  3. Step 3: Cross multiply
    57,053.87x = 78,707.81 × 36,917.25
  4. Step 4: Simplify right side
    57,053.87x = 2,905,675,695.86
  5. Step 5: Solve for x
    x = 2,905,675,695.86/57,053.87
  6. Step 6: Final answer
    x = 50,928.64

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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.