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Finding the Fourth Proportional to 8,987.96, 13,481.94 and 4,367

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Solution

The fourth proportional to 8,987.96, 13,481.94 and 4,367 is: 6,550.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,987.96 : 13,481.94 = 4,367 : x
  2. Step 2: Convert to fraction form
    8,987.96/13,481.94 = 4,367/x
  3. Step 3: Cross multiply
    8,987.96x = 13,481.94 × 4,367
  4. Step 4: Simplify right side
    8,987.96x = 58,875,631.98
  5. Step 5: Solve for x
    x = 58,875,631.98/8,987.96
  6. Step 6: Final answer
    x = 6,550.50

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Similar ratio
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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.