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Finding the Fourth Proportional to 18,538.68, 27,811.04 and 6,055.08

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Solution

The fourth proportional to 18,538.68, 27,811.04 and 6,055.08 is: 9,083.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,538.68 : 27,811.04 = 6,055.08 : x
  2. Step 2: Convert to fraction form
    18,538.68/27,811.04 = 6,055.08/x
  3. Step 3: Cross multiply
    18,538.68x = 27,811.04 × 6,055.08
  4. Step 4: Simplify right side
    18,538.68x = 168,397,948.17
  5. Step 5: Solve for x
    x = 168,397,948.17/18,538.68
  6. Step 6: Final answer
    x = 9,083.60

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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.