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Finding the Fourth Proportional to 18,386.22, 27,583.43 and 6,699.44

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Solution

The fourth proportional to 18,386.22, 27,583.43 and 6,699.44 is: 10,050.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,386.22 : 27,583.43 = 6,699.44 : x
  2. Step 2: Convert to fraction form
    18,386.22/27,583.43 = 6,699.44/x
  3. Step 3: Cross multiply
    18,386.22x = 27,583.43 × 6,699.44
  4. Step 4: Simplify right side
    18,386.22x = 184,793,534.28
  5. Step 5: Solve for x
    x = 184,793,534.28/18,386.22
  6. Step 6: Final answer
    x = 10,050.65

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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.