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Finding the Fourth Proportional to 7,048.67, 9,727.04 and 3,904.79

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Solution

The fourth proportional to 7,048.67, 9,727.04 and 3,904.79 is: 5,388.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,048.67 : 9,727.04 = 3,904.79 : x
  2. Step 2: Convert to fraction form
    7,048.67/9,727.04 = 3,904.79/x
  3. Step 3: Cross multiply
    7,048.67x = 9,727.04 × 3,904.79
  4. Step 4: Simplify right side
    7,048.67x = 37,982,029.00
  5. Step 5: Solve for x
    x = 37,982,029.00/7,048.67
  6. Step 6: Final answer
    x = 5,388.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.