Home / 31,083.20-46,623.96-7,709.36

Finding the Fourth Proportional to 31,083.20, 46,623.96 and 7,709.36

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Solution

The fourth proportional to 31,083.20, 46,623.96 and 7,709.36 is: 11,563.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,083.20 : 46,623.96 = 7,709.36 : x
  2. Step 2: Convert to fraction form
    31,083.20/46,623.96 = 7,709.36/x
  3. Step 3: Cross multiply
    31,083.20x = 46,623.96 × 7,709.36
  4. Step 4: Simplify right side
    31,083.20x = 359,440,892.27
  5. Step 5: Solve for x
    x = 359,440,892.27/31,083.20
  6. Step 6: Final answer
    x = 11,563.83

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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.