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Finding the Fourth Proportional to 7,260.39, 10,019.88 and 4,074.06

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Solution

The fourth proportional to 7,260.39, 10,019.88 and 4,074.06 is: 5,622.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,260.39 : 10,019.88 = 4,074.06 : x
  2. Step 2: Convert to fraction form
    7,260.39/10,019.88 = 4,074.06/x
  3. Step 3: Cross multiply
    7,260.39x = 10,019.88 × 4,074.06
  4. Step 4: Simplify right side
    7,260.39x = 40,821,592.31
  5. Step 5: Solve for x
    x = 40,821,592.31/7,260.39
  6. Step 6: Final answer
    x = 5,622.51

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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.