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Finding the Fourth Proportional to 6,804.72, 9,390.87 and 4,151.97

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Solution

The fourth proportional to 6,804.72, 9,390.87 and 4,151.97 is: 5,729.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,804.72 : 9,390.87 = 4,151.97 : x
  2. Step 2: Convert to fraction form
    6,804.72/9,390.87 = 4,151.97/x
  3. Step 3: Cross multiply
    6,804.72x = 9,390.87 × 4,151.97
  4. Step 4: Simplify right side
    6,804.72x = 38,990,610.51
  5. Step 5: Solve for x
    x = 38,990,610.51/6,804.72
  6. Step 6: Final answer
    x = 5,729.94

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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.