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Finding the Fourth Proportional to 57,152.74, 78,879.77 and 34,494.96

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Solution

The fourth proportional to 57,152.74, 78,879.77 and 34,494.96 is: 47,608.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,152.74 : 78,879.77 = 34,494.96 : x
  2. Step 2: Convert to fraction form
    57,152.74/78,879.77 = 34,494.96/x
  3. Step 3: Cross multiply
    57,152.74x = 78,879.77 × 34,494.96
  4. Step 4: Simplify right side
    57,152.74x = 2,720,954,957.67
  5. Step 5: Solve for x
    x = 2,720,954,957.67/57,152.74
  6. Step 6: Final answer
    x = 47,608.48

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1.5x scale

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.