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Finding the Fourth Proportional to 67,679.80, 93,366.84 and 43,814.20

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Solution

The fourth proportional to 67,679.80, 93,366.84 and 43,814.20 is: 60,443.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,679.80 : 93,366.84 = 43,814.20 : x
  2. Step 2: Convert to fraction form
    67,679.80/93,366.84 = 43,814.20/x
  3. Step 3: Cross multiply
    67,679.80x = 93,366.84 × 43,814.20
  4. Step 4: Simplify right side
    67,679.80x = 4,090,793,401.13
  5. Step 5: Solve for x
    x = 4,090,793,401.13/67,679.80
  6. Step 6: Final answer
    x = 60,443.34

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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.