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Finding the Fourth Proportional to 9,994.57, 14,991.65 and 3,331.55

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Solution

The fourth proportional to 9,994.57, 14,991.65 and 3,331.55 is: 4,997.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,994.57 : 14,991.65 = 3,331.55 : x
  2. Step 2: Convert to fraction form
    9,994.57/14,991.65 = 3,331.55/x
  3. Step 3: Cross multiply
    9,994.57x = 14,991.65 × 3,331.55
  4. Step 4: Simplify right side
    9,994.57x = 49,945,339.94
  5. Step 5: Solve for x
    x = 49,945,339.94/9,994.57
  6. Step 6: Final answer
    x = 4,997.25

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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.