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Finding the Fourth Proportional to 69,861.40, 104,792.10 and 25,489.60

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Solution

The fourth proportional to 69,861.40, 104,792.10 and 25,489.60 is: 38,234.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,861.40 : 104,792.10 = 25,489.60 : x
  2. Step 2: Convert to fraction form
    69,861.40/104,792.10 = 25,489.60/x
  3. Step 3: Cross multiply
    69,861.40x = 104,792.10 × 25,489.60
  4. Step 4: Simplify right side
    69,861.40x = 2,671,108,712.16
  5. Step 5: Solve for x
    x = 2,671,108,712.16/69,861.40
  6. Step 6: Final answer
    x = 38,234.40

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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.