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Finding the Fourth Proportional to 57,889.40, 79,891.67 and 32,398.32

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Solution

The fourth proportional to 57,889.40, 79,891.67 and 32,398.32 is: 44,712.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,889.40 : 79,891.67 = 32,398.32 : x
  2. Step 2: Convert to fraction form
    57,889.40/79,891.67 = 32,398.32/x
  3. Step 3: Cross multiply
    57,889.40x = 79,891.67 × 32,398.32
  4. Step 4: Simplify right side
    57,889.40x = 2,588,355,728.00
  5. Step 5: Solve for x
    x = 2,588,355,728.00/57,889.40
  6. Step 6: Final answer
    x = 44,712.09

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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.