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Finding the Fourth Proportional to 69,847.61, 104,771.41 and 17,258.09

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Solution

The fourth proportional to 69,847.61, 104,771.41 and 17,258.09 is: 25,887.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,847.61 : 104,771.41 = 17,258.09 : x
  2. Step 2: Convert to fraction form
    69,847.61/104,771.41 = 17,258.09/x
  3. Step 3: Cross multiply
    69,847.61x = 104,771.41 × 17,258.09
  4. Step 4: Simplify right side
    69,847.61x = 1,808,153,856.20
  5. Step 5: Solve for x
    x = 1,808,153,856.20/69,847.61
  6. Step 6: Final answer
    x = 25,887.13

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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.