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Finding the Fourth Proportional to 31,249.99, 46,889.90 and 14,607.60

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Solution

The fourth proportional to 31,249.99, 46,889.90 and 14,607.60 is: 21,918.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,249.99 : 46,889.90 = 14,607.60 : x
  2. Step 2: Convert to fraction form
    31,249.99/46,889.90 = 14,607.60/x
  3. Step 3: Cross multiply
    31,249.99x = 46,889.90 × 14,607.60
  4. Step 4: Simplify right side
    31,249.99x = 684,949,027.68
  5. Step 5: Solve for x
    x = 684,949,027.68/31,249.99
  6. Step 6: Final answer
    x = 21,918.38

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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.