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Finding the Fourth Proportional to 4,980.56, 7,474.00 and 4,512.99

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Solution

The fourth proportional to 4,980.56, 7,474.00 and 4,512.99 is: 6,772.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,980.56 : 7,474.00 = 4,512.99 : x
  2. Step 2: Convert to fraction form
    4,980.56/7,474.00 = 4,512.99/x
  3. Step 3: Cross multiply
    4,980.56x = 7,474.00 × 4,512.99
  4. Step 4: Simplify right side
    4,980.56x = 33,730,057.29
  5. Step 5: Solve for x
    x = 33,730,057.29/4,980.56
  6. Step 6: Final answer
    x = 6,772.34

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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.