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Finding the Fourth Proportional to 4,980.52, 7,471.90 and 1,518.12

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Solution

The fourth proportional to 4,980.52, 7,471.90 and 1,518.12 is: 2,277.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,980.52 : 7,471.90 = 1,518.12 : x
  2. Step 2: Convert to fraction form
    4,980.52/7,471.90 = 1,518.12/x
  3. Step 3: Cross multiply
    4,980.52x = 7,471.90 × 1,518.12
  4. Step 4: Simplify right side
    4,980.52x = 11,343,240.83
  5. Step 5: Solve for x
    x = 11,343,240.83/4,980.52
  6. Step 6: Final answer
    x = 2,277.52

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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.