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Finding the Fourth Proportional to 67,856.88, 101,785.97 and 25,725.63

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Solution

The fourth proportional to 67,856.88, 101,785.97 and 25,725.63 is: 38,588.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,856.88 : 101,785.97 = 25,725.63 : x
  2. Step 2: Convert to fraction form
    67,856.88/101,785.97 = 25,725.63/x
  3. Step 3: Cross multiply
    67,856.88x = 101,785.97 × 25,725.63
  4. Step 4: Simplify right side
    67,856.88x = 2,618,508,203.41
  5. Step 5: Solve for x
    x = 2,618,508,203.41/67,856.88
  6. Step 6: Final answer
    x = 38,588.69

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1.5x scale

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.