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Finding the Fourth Proportional to 8,985.98, 13,481.41 and 5,093.12

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Solution

The fourth proportional to 8,985.98, 13,481.41 and 5,093.12 is: 7,641.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,985.98 : 13,481.41 = 5,093.12 : x
  2. Step 2: Convert to fraction form
    8,985.98/13,481.41 = 5,093.12/x
  3. Step 3: Cross multiply
    8,985.98x = 13,481.41 × 5,093.12
  4. Step 4: Simplify right side
    8,985.98x = 68,662,438.90
  5. Step 5: Solve for x
    x = 68,662,438.90/8,985.98
  6. Step 6: Final answer
    x = 7,641.06

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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.