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Finding the Fourth Proportional to 68,861.40, 103,267.80 and 24,489.60

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Solution

The fourth proportional to 68,861.40, 103,267.80 and 24,489.60 is: 36,725.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,861.40 : 103,267.80 = 24,489.60 : x
  2. Step 2: Convert to fraction form
    68,861.40/103,267.80 = 24,489.60/x
  3. Step 3: Cross multiply
    68,861.40x = 103,267.80 × 24,489.60
  4. Step 4: Simplify right side
    68,861.40x = 2,528,987,114.88
  5. Step 5: Solve for x
    x = 2,528,987,114.88/68,861.40
  6. Step 6: Final answer
    x = 36,725.76

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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.