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Finding the Fourth Proportional to 57,707.78, 79,640.74 and 32,219.16

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Solution

The fourth proportional to 57,707.78, 79,640.74 and 32,219.16 is: 44,464.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,707.78 : 79,640.74 = 32,219.16 : x
  2. Step 2: Convert to fraction form
    57,707.78/79,640.74 = 32,219.16/x
  3. Step 3: Cross multiply
    57,707.78x = 79,640.74 × 32,219.16
  4. Step 4: Simplify right side
    57,707.78x = 2,565,957,744.58
  5. Step 5: Solve for x
    x = 2,565,957,744.58/57,707.78
  6. Step 6: Final answer
    x = 44,464.68

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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.