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Finding the Fourth Proportional to 18,036.56, 27,057 and 6,347.36

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Solution

The fourth proportional to 18,036.56, 27,057 and 6,347.36 is: 9,521.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,036.56 : 27,057 = 6,347.36 : x
  2. Step 2: Convert to fraction form
    18,036.56/27,057 = 6,347.36/x
  3. Step 3: Cross multiply
    18,036.56x = 27,057 × 6,347.36
  4. Step 4: Simplify right side
    18,036.56x = 171,740,519.52
  5. Step 5: Solve for x
    x = 171,740,519.52/18,036.56
  6. Step 6: Final answer
    x = 9,521.80

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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.