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Finding the Fourth Proportional to 17,992.55, 26,990.75 and 4,845.11

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Solution

The fourth proportional to 17,992.55, 26,990.75 and 4,845.11 is: 7,268.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,992.55 : 26,990.75 = 4,845.11 : x
  2. Step 2: Convert to fraction form
    17,992.55/26,990.75 = 4,845.11/x
  3. Step 3: Cross multiply
    17,992.55x = 26,990.75 × 4,845.11
  4. Step 4: Simplify right side
    17,992.55x = 130,772,993.55
  5. Step 5: Solve for x
    x = 130,772,993.55/17,992.55
  6. Step 6: Final answer
    x = 7,268.18

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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.