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Finding the Fourth Proportional to 56,651.09, 84,978.54 and 17,208.14

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Solution

The fourth proportional to 56,651.09, 84,978.54 and 17,208.14 is: 25,812.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,651.09 : 84,978.54 = 17,208.14 : x
  2. Step 2: Convert to fraction form
    56,651.09/84,978.54 = 17,208.14/x
  3. Step 3: Cross multiply
    56,651.09x = 84,978.54 × 17,208.14
  4. Step 4: Simplify right side
    56,651.09x = 1,462,322,188.42
  5. Step 5: Solve for x
    x = 1,462,322,188.42/56,651.09
  6. Step 6: Final answer
    x = 25,812.78

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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.