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Finding the Fourth Proportional to 57,265.44, 79,024.79 and 31,423.91

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Solution

The fourth proportional to 57,265.44, 79,024.79 and 31,423.91 is: 43,364.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,265.44 : 79,024.79 = 31,423.91 : x
  2. Step 2: Convert to fraction form
    57,265.44/79,024.79 = 31,423.91/x
  3. Step 3: Cross multiply
    57,265.44x = 79,024.79 × 31,423.91
  4. Step 4: Simplify right side
    57,265.44x = 2,483,267,493.60
  5. Step 5: Solve for x
    x = 2,483,267,493.60/57,265.44
  6. Step 6: Final answer
    x = 43,364.16

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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.