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Finding the Fourth Proportional to 57,784.40, 86,676.60 and 32,901.20

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Solution

The fourth proportional to 57,784.40, 86,676.60 and 32,901.20 is: 49,351.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,784.40 : 86,676.60 = 32,901.20 : x
  2. Step 2: Convert to fraction form
    57,784.40/86,676.60 = 32,901.20/x
  3. Step 3: Cross multiply
    57,784.40x = 86,676.60 × 32,901.20
  4. Step 4: Simplify right side
    57,784.40x = 2,851,764,151.92
  5. Step 5: Solve for x
    x = 2,851,764,151.92/57,784.40
  6. Step 6: Final answer
    x = 49,351.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.