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Finding the Fourth Proportional to 7,262.65, 10,879.38 and 6,147.28

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Solution

The fourth proportional to 7,262.65, 10,879.38 and 6,147.28 is: 9,208.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,262.65 : 10,879.38 = 6,147.28 : x
  2. Step 2: Convert to fraction form
    7,262.65/10,879.38 = 6,147.28/x
  3. Step 3: Cross multiply
    7,262.65x = 10,879.38 × 6,147.28
  4. Step 4: Simplify right side
    7,262.65x = 66,878,595.09
  5. Step 5: Solve for x
    x = 66,878,595.09/7,262.65
  6. Step 6: Final answer
    x = 9,208.57

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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.