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Finding the Fourth Proportional to 80,984.88, 111,698.87 and 59,467.86

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Solution

The fourth proportional to 80,984.88, 111,698.87 and 59,467.86 is: 82,021.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,984.88 : 111,698.87 = 59,467.86 : x
  2. Step 2: Convert to fraction form
    80,984.88/111,698.87 = 59,467.86/x
  3. Step 3: Cross multiply
    80,984.88x = 111,698.87 × 59,467.86
  4. Step 4: Simplify right side
    80,984.88x = 6,642,492,465.98
  5. Step 5: Solve for x
    x = 6,642,492,465.98/80,984.88
  6. Step 6: Final answer
    x = 82,021.39

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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.