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Finding the Fourth Proportional to 57,896.70, 79,913.16 and 34,031.04

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Solution

The fourth proportional to 57,896.70, 79,913.16 and 34,031.04 is: 46,972.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,896.70 : 79,913.16 = 34,031.04 : x
  2. Step 2: Convert to fraction form
    57,896.70/79,913.16 = 34,031.04/x
  3. Step 3: Cross multiply
    57,896.70x = 79,913.16 × 34,031.04
  4. Step 4: Simplify right side
    57,896.70x = 2,719,527,944.49
  5. Step 5: Solve for x
    x = 2,719,527,944.49/57,896.70
  6. Step 6: Final answer
    x = 46,972.07

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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.