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Finding the Fourth Proportional to 69,776.48, 104,664.72 and 17,186.96

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Solution

The fourth proportional to 69,776.48, 104,664.72 and 17,186.96 is: 25,780.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,776.48 : 104,664.72 = 17,186.96 : x
  2. Step 2: Convert to fraction form
    69,776.48/104,664.72 = 17,186.96/x
  3. Step 3: Cross multiply
    69,776.48x = 104,664.72 × 17,186.96
  4. Step 4: Simplify right side
    69,776.48x = 1,798,868,356.05
  5. Step 5: Solve for x
    x = 1,798,868,356.05/69,776.48
  6. Step 6: Final answer
    x = 25,780.44

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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.