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Finding the Fourth Proportional to 4,821.78, 7,234.06 and 2,010.12

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Solution

The fourth proportional to 4,821.78, 7,234.06 and 2,010.12 is: 3,015.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,821.78 : 7,234.06 = 2,010.12 : x
  2. Step 2: Convert to fraction form
    4,821.78/7,234.06 = 2,010.12/x
  3. Step 3: Cross multiply
    4,821.78x = 7,234.06 × 2,010.12
  4. Step 4: Simplify right side
    4,821.78x = 14,541,328.69
  5. Step 5: Solve for x
    x = 14,541,328.69/4,821.78
  6. Step 6: Final answer
    x = 3,015.76

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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.