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Finding the Fourth Proportional to 53,203.22, 79,807.26 and 19,914.66

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Solution

The fourth proportional to 53,203.22, 79,807.26 and 19,914.66 is: 29,872.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,203.22 : 79,807.26 = 19,914.66 : x
  2. Step 2: Convert to fraction form
    53,203.22/79,807.26 = 19,914.66/x
  3. Step 3: Cross multiply
    53,203.22x = 79,807.26 × 19,914.66
  4. Step 4: Simplify right side
    53,203.22x = 1,589,334,448.43
  5. Step 5: Solve for x
    x = 1,589,334,448.43/53,203.22
  6. Step 6: Final answer
    x = 29,872.90

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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.