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Finding the Fourth Proportional to 67,099.88, 92,599.78 and 38,814.44

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Solution

The fourth proportional to 67,099.88, 92,599.78 and 38,814.44 is: 53,565.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,099.88 : 92,599.78 = 38,814.44 : x
  2. Step 2: Convert to fraction form
    67,099.88/92,599.78 = 38,814.44/x
  3. Step 3: Cross multiply
    67,099.88x = 92,599.78 × 38,814.44
  4. Step 4: Simplify right side
    67,099.88x = 3,594,208,604.82
  5. Step 5: Solve for x
    x = 3,594,208,604.82/67,099.88
  6. Step 6: Final answer
    x = 53,565.05

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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.