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Finding the Fourth Proportional to 57,894.72, 79,886.16 and 32,743.68

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Solution

The fourth proportional to 57,894.72, 79,886.16 and 32,743.68 is: 45,181.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,894.72 : 79,886.16 = 32,743.68 : x
  2. Step 2: Convert to fraction form
    57,894.72/79,886.16 = 32,743.68/x
  3. Step 3: Cross multiply
    57,894.72x = 79,886.16 × 32,743.68
  4. Step 4: Simplify right side
    57,894.72x = 2,615,766,859.47
  5. Step 5: Solve for x
    x = 2,615,766,859.47/57,894.72
  6. Step 6: Final answer
    x = 45,181.44

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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.