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Finding the Fourth Proportional to 69,814.51, 104,762.77 and 25,440.28

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Solution

The fourth proportional to 69,814.51, 104,762.77 and 25,440.28 is: 38,175.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,814.51 : 104,762.77 = 25,440.28 : x
  2. Step 2: Convert to fraction form
    69,814.51/104,762.77 = 25,440.28/x
  3. Step 3: Cross multiply
    69,814.51x = 104,762.77 × 25,440.28
  4. Step 4: Simplify right side
    69,814.51x = 2,665,193,876.87
  5. Step 5: Solve for x
    x = 2,665,193,876.87/69,814.51
  6. Step 6: Final answer
    x = 38,175.36

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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.