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Finding the Fourth Proportional to 7,992.69, 11,030.10 and 4,455.99

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Solution

The fourth proportional to 7,992.69, 11,030.10 and 4,455.99 is: 6,149.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,992.69 : 11,030.10 = 4,455.99 : x
  2. Step 2: Convert to fraction form
    7,992.69/11,030.10 = 4,455.99/x
  3. Step 3: Cross multiply
    7,992.69x = 11,030.10 × 4,455.99
  4. Step 4: Simplify right side
    7,992.69x = 49,150,015.30
  5. Step 5: Solve for x
    x = 49,150,015.30/7,992.69
  6. Step 6: Final answer
    x = 6,149.37

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1.5x scale

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.