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Finding the Fourth Proportional to 7,168.05, 9,891.36 and 4,023.63

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Solution

The fourth proportional to 7,168.05, 9,891.36 and 4,023.63 is: 5,552.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,168.05 : 9,891.36 = 4,023.63 : x
  2. Step 2: Convert to fraction form
    7,168.05/9,891.36 = 4,023.63/x
  3. Step 3: Cross multiply
    7,168.05x = 9,891.36 × 4,023.63
  4. Step 4: Simplify right side
    7,168.05x = 39,799,172.84
  5. Step 5: Solve for x
    x = 39,799,172.84/7,168.05
  6. Step 6: Final answer
    x = 5,552.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.