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Finding the Fourth Proportional to 67,856.63, 101,785.59 and 25,725.38

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Solution

The fourth proportional to 67,856.63, 101,785.59 and 25,725.38 is: 38,588.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,856.63 : 101,785.59 = 25,725.38 : x
  2. Step 2: Convert to fraction form
    67,856.63/101,785.59 = 25,725.38/x
  3. Step 3: Cross multiply
    67,856.63x = 101,785.59 × 25,725.38
  4. Step 4: Simplify right side
    67,856.63x = 2,618,472,472.35
  5. Step 5: Solve for x
    x = 2,618,472,472.35/67,856.63
  6. Step 6: Final answer
    x = 38,588.31

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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.