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Finding the Fourth Proportional to 7,274.88, 10,911.24 and 2,343.88

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Solution

The fourth proportional to 7,274.88, 10,911.24 and 2,343.88 is: 3,515.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,274.88 : 10,911.24 = 2,343.88 : x
  2. Step 2: Convert to fraction form
    7,274.88/10,911.24 = 2,343.88/x
  3. Step 3: Cross multiply
    7,274.88x = 10,911.24 × 2,343.88
  4. Step 4: Simplify right side
    7,274.88x = 25,574,637.21
  5. Step 5: Solve for x
    x = 25,574,637.21/7,274.88
  6. Step 6: Final answer
    x = 3,515.47

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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.