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Finding the Fourth Proportional to 18,615.51, 27,927.37 and 6,135.03

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Solution

The fourth proportional to 18,615.51, 27,927.37 and 6,135.03 is: 9,203.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,615.51 : 27,927.37 = 6,135.03 : x
  2. Step 2: Convert to fraction form
    18,615.51/27,927.37 = 6,135.03/x
  3. Step 3: Cross multiply
    18,615.51x = 27,927.37 × 6,135.03
  4. Step 4: Simplify right side
    18,615.51x = 171,335,252.77
  5. Step 5: Solve for x
    x = 171,335,252.77/18,615.51
  6. Step 6: Final answer
    x = 9,203.90

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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.