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Finding the Fourth Proportional to 69,400.99, 104,101.14 and 16,810.48

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Solution

The fourth proportional to 69,400.99, 104,101.14 and 16,810.48 is: 25,215.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,400.99 : 104,101.14 = 16,810.48 : x
  2. Step 2: Convert to fraction form
    69,400.99/104,101.14 = 16,810.48/x
  3. Step 3: Cross multiply
    69,400.99x = 104,101.14 × 16,810.48
  4. Step 4: Simplify right side
    69,400.99x = 1,749,990,131.95
  5. Step 5: Solve for x
    x = 1,749,990,131.95/69,400.99
  6. Step 6: Final answer
    x = 25,215.64

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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.