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Finding the Fourth Proportional to 78,797.26, 118,196.34 and 19,632.94

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Solution

The fourth proportional to 78,797.26, 118,196.34 and 19,632.94 is: 29,449.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,797.26 : 118,196.34 = 19,632.94 : x
  2. Step 2: Convert to fraction form
    78,797.26/118,196.34 = 19,632.94/x
  3. Step 3: Cross multiply
    78,797.26x = 118,196.34 × 19,632.94
  4. Step 4: Simplify right side
    78,797.26x = 2,320,541,651.44
  5. Step 5: Solve for x
    x = 2,320,541,651.44/78,797.26
  6. Step 6: Final answer
    x = 29,449.52

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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.