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Finding the Fourth Proportional to 18,091.98, 27,137.97 and 8,851.50

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Solution

The fourth proportional to 18,091.98, 27,137.97 and 8,851.50 is: 13,277.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,091.98 : 27,137.97 = 8,851.50 : x
  2. Step 2: Convert to fraction form
    18,091.98/27,137.97 = 8,851.50/x
  3. Step 3: Cross multiply
    18,091.98x = 27,137.97 × 8,851.50
  4. Step 4: Simplify right side
    18,091.98x = 240,211,741.46
  5. Step 5: Solve for x
    x = 240,211,741.46/18,091.98
  6. Step 6: Final answer
    x = 13,277.25

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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.