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Finding the Fourth Proportional to 31,109.94, 46,664.97 and 7,736.40

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Solution

The fourth proportional to 31,109.94, 46,664.97 and 7,736.40 is: 11,604.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,109.94 : 46,664.97 = 7,736.40 : x
  2. Step 2: Convert to fraction form
    31,109.94/46,664.97 = 7,736.40/x
  3. Step 3: Cross multiply
    31,109.94x = 46,664.97 × 7,736.40
  4. Step 4: Simplify right side
    31,109.94x = 361,018,873.91
  5. Step 5: Solve for x
    x = 361,018,873.91/31,109.94
  6. Step 6: Final answer
    x = 11,604.61

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1.5x scale

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.