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Finding the Fourth Proportional to 7,326.54, 10,112.49 and 6,579.21

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Solution

The fourth proportional to 7,326.54, 10,112.49 and 6,579.21 is: 9,080.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,326.54 : 10,112.49 = 6,579.21 : x
  2. Step 2: Convert to fraction form
    7,326.54/10,112.49 = 6,579.21/x
  3. Step 3: Cross multiply
    7,326.54x = 10,112.49 × 6,579.21
  4. Step 4: Simplify right side
    7,326.54x = 66,532,195.33
  5. Step 5: Solve for x
    x = 66,532,195.33/7,326.54
  6. Step 6: Final answer
    x = 9,080.98

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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.