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Finding the Fourth Proportional to 17,991.85, 26,987.75 and 4,844.24

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Solution

The fourth proportional to 17,991.85, 26,987.75 and 4,844.24 is: 7,266.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,991.85 : 26,987.75 = 4,844.24 : x
  2. Step 2: Convert to fraction form
    17,991.85/26,987.75 = 4,844.24/x
  3. Step 3: Cross multiply
    17,991.85x = 26,987.75 × 4,844.24
  4. Step 4: Simplify right side
    17,991.85x = 130,735,138.06
  5. Step 5: Solve for x
    x = 130,735,138.06/17,991.85
  6. Step 6: Final answer
    x = 7,266.35

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1.5x scale

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.