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Finding the Fourth Proportional to 31,198.75, 46,798.49 and 9,012.37

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Solution

The fourth proportional to 31,198.75, 46,798.49 and 9,012.37 is: 13,518.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,198.75 : 46,798.49 = 9,012.37 : x
  2. Step 2: Convert to fraction form
    31,198.75/46,798.49 = 9,012.37/x
  3. Step 3: Cross multiply
    31,198.75x = 46,798.49 × 9,012.37
  4. Step 4: Simplify right side
    31,198.75x = 421,765,307.32
  5. Step 5: Solve for x
    x = 421,765,307.32/31,198.75
  6. Step 6: Final answer
    x = 13,518.66

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.