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Finding the Fourth Proportional to 7,538.82, 10,404.10 and 4,181.95

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Solution

The fourth proportional to 7,538.82, 10,404.10 and 4,181.95 is: 5,771.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,538.82 : 10,404.10 = 4,181.95 : x
  2. Step 2: Convert to fraction form
    7,538.82/10,404.10 = 4,181.95/x
  3. Step 3: Cross multiply
    7,538.82x = 10,404.10 × 4,181.95
  4. Step 4: Simplify right side
    7,538.82x = 43,509,426.00
  5. Step 5: Solve for x
    x = 43,509,426.00/7,538.82
  6. Step 6: Final answer
    x = 5,771.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.