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Finding the Fourth Proportional to 7,992.99, 11,030.31 and 4,455.99

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Solution

The fourth proportional to 7,992.99, 11,030.31 and 4,455.99 is: 6,149.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,992.99 : 11,030.31 = 4,455.99 : x
  2. Step 2: Convert to fraction form
    7,992.99/11,030.31 = 4,455.99/x
  3. Step 3: Cross multiply
    7,992.99x = 11,030.31 × 4,455.99
  4. Step 4: Simplify right side
    7,992.99x = 49,150,951.06
  5. Step 5: Solve for x
    x = 49,150,951.06/7,992.99
  6. Step 6: Final answer
    x = 6,149.26

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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.