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Finding the Fourth Proportional to 11,232.70, 16,848.96 and 2,912.70

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Solution

The fourth proportional to 11,232.70, 16,848.96 and 2,912.70 is: 4,369.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,232.70 : 16,848.96 = 2,912.70 : x
  2. Step 2: Convert to fraction form
    11,232.70/16,848.96 = 2,912.70/x
  3. Step 3: Cross multiply
    11,232.70x = 16,848.96 × 2,912.70
  4. Step 4: Simplify right side
    11,232.70x = 49,075,965.79
  5. Step 5: Solve for x
    x = 49,075,965.79/11,232.70
  6. Step 6: Final answer
    x = 4,369.03

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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.