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Finding the Fourth Proportional to 18,159.25, 27,223.27 and 6,311.48

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Solution

The fourth proportional to 18,159.25, 27,223.27 and 6,311.48 is: 9,461.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,159.25 : 27,223.27 = 6,311.48 : x
  2. Step 2: Convert to fraction form
    18,159.25/27,223.27 = 6,311.48/x
  3. Step 3: Cross multiply
    18,159.25x = 27,223.27 × 6,311.48
  4. Step 4: Simplify right side
    18,159.25x = 171,819,150.28
  5. Step 5: Solve for x
    x = 171,819,150.28/18,159.25
  6. Step 6: Final answer
    x = 9,461.80

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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.