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Finding the Fourth Proportional to 7,015.78, 10,512.23 and 3,263.48

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Solution

The fourth proportional to 7,015.78, 10,512.23 and 3,263.48 is: 4,889.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,015.78 : 10,512.23 = 3,263.48 : x
  2. Step 2: Convert to fraction form
    7,015.78/10,512.23 = 3,263.48/x
  3. Step 3: Cross multiply
    7,015.78x = 10,512.23 × 3,263.48
  4. Step 4: Simplify right side
    7,015.78x = 34,306,482.03
  5. Step 5: Solve for x
    x = 34,306,482.03/7,015.78
  6. Step 6: Final answer
    x = 4,889.90

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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.