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Finding the Fourth Proportional to 57,812.96, 79,783.44 and 32,661.92

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Solution

The fourth proportional to 57,812.96, 79,783.44 and 32,661.92 is: 45,074.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,812.96 : 79,783.44 = 32,661.92 : x
  2. Step 2: Convert to fraction form
    57,812.96/79,783.44 = 32,661.92/x
  3. Step 3: Cross multiply
    57,812.96x = 79,783.44 × 32,661.92
  4. Step 4: Simplify right side
    57,812.96x = 2,605,880,334.60
  5. Step 5: Solve for x
    x = 2,605,880,334.60/57,812.96
  6. Step 6: Final answer
    x = 45,074.33

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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.