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Finding the Fourth Proportional to 57,969.79, 79,998.19 and 32,821.63

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Solution

The fourth proportional to 57,969.79, 79,998.19 and 32,821.63 is: 45,293.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,969.79 : 79,998.19 = 32,821.63 : x
  2. Step 2: Convert to fraction form
    57,969.79/79,998.19 = 32,821.63/x
  3. Step 3: Cross multiply
    57,969.79x = 79,998.19 × 32,821.63
  4. Step 4: Simplify right side
    57,969.79x = 2,625,670,992.85
  5. Step 5: Solve for x
    x = 2,625,670,992.85/57,969.79
  6. Step 6: Final answer
    x = 45,293.78

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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.