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Finding the Fourth Proportional to 17,828.57, 26,728.27 and 6,728.93

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Solution

The fourth proportional to 17,828.57, 26,728.27 and 6,728.93 is: 10,087.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,828.57 : 26,728.27 = 6,728.93 : x
  2. Step 2: Convert to fraction form
    17,828.57/26,728.27 = 6,728.93/x
  3. Step 3: Cross multiply
    17,828.57x = 26,728.27 × 6,728.93
  4. Step 4: Simplify right side
    17,828.57x = 179,852,707.85
  5. Step 5: Solve for x
    x = 179,852,707.85/17,828.57
  6. Step 6: Final answer
    x = 10,087.90

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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.