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Finding the Fourth Proportional to 68,479.28, 94,498.69 and 39,797.59

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Solution

The fourth proportional to 68,479.28, 94,498.69 and 39,797.59 is: 54,919.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,479.28 : 94,498.69 = 39,797.59 : x
  2. Step 2: Convert to fraction form
    68,479.28/94,498.69 = 39,797.59/x
  3. Step 3: Cross multiply
    68,479.28x = 94,498.69 × 39,797.59
  4. Step 4: Simplify right side
    68,479.28x = 3,760,820,176.11
  5. Step 5: Solve for x
    x = 3,760,820,176.11/68,479.28
  6. Step 6: Final answer
    x = 54,919.09

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1.5x scale

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.