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Finding the Fourth Proportional to 7,954.79, 11,937.51 and 3,572.55

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Solution

The fourth proportional to 7,954.79, 11,937.51 and 3,572.55 is: 5,361.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,954.79 : 11,937.51 = 3,572.55 : x
  2. Step 2: Convert to fraction form
    7,954.79/11,937.51 = 3,572.55/x
  3. Step 3: Cross multiply
    7,954.79x = 11,937.51 × 3,572.55
  4. Step 4: Simplify right side
    7,954.79x = 42,647,351.35
  5. Step 5: Solve for x
    x = 42,647,351.35/7,954.79
  6. Step 6: Final answer
    x = 5,361.22

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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.