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Finding the Fourth Proportional to 68,983.70, 103,487.70 and 24,636.20

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Solution

The fourth proportional to 68,983.70, 103,487.70 and 24,636.20 is: 36,958.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,983.70 : 103,487.70 = 24,636.20 : x
  2. Step 2: Convert to fraction form
    68,983.70/103,487.70 = 24,636.20/x
  3. Step 3: Cross multiply
    68,983.70x = 103,487.70 × 24,636.20
  4. Step 4: Simplify right side
    68,983.70x = 2,549,543,674.74
  5. Step 5: Solve for x
    x = 2,549,543,674.74/68,983.70
  6. Step 6: Final answer
    x = 36,958.64

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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.