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Finding the Fourth Proportional to 16,707.91, 25,070.09 and 7,823.85

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Solution

The fourth proportional to 16,707.91, 25,070.09 and 7,823.85 is: 11,739.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,707.91 : 25,070.09 = 7,823.85 : x
  2. Step 2: Convert to fraction form
    16,707.91/25,070.09 = 7,823.85/x
  3. Step 3: Cross multiply
    16,707.91x = 25,070.09 × 7,823.85
  4. Step 4: Simplify right side
    16,707.91x = 196,144,623.65
  5. Step 5: Solve for x
    x = 196,144,623.65/16,707.91
  6. Step 6: Final answer
    x = 11,739.63

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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.