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Finding the Fourth Proportional to 26,912.84, 40,370.03 and 7,191.42

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Solution

The fourth proportional to 26,912.84, 40,370.03 and 7,191.42 is: 10,787.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,912.84 : 40,370.03 = 7,191.42 : x
  2. Step 2: Convert to fraction form
    26,912.84/40,370.03 = 7,191.42/x
  3. Step 3: Cross multiply
    26,912.84x = 40,370.03 × 7,191.42
  4. Step 4: Simplify right side
    26,912.84x = 290,317,805.19
  5. Step 5: Solve for x
    x = 290,317,805.19/26,912.84
  6. Step 6: Final answer
    x = 10,787.34

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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.