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Finding the Fourth Proportional to 8,449.80, 11,661.24 and 5,092.60

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Solution

The fourth proportional to 8,449.80, 11,661.24 and 5,092.60 is: 7,028.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,449.80 : 11,661.24 = 5,092.60 : x
  2. Step 2: Convert to fraction form
    8,449.80/11,661.24 = 5,092.60/x
  3. Step 3: Cross multiply
    8,449.80x = 11,661.24 × 5,092.60
  4. Step 4: Simplify right side
    8,449.80x = 59,386,030.82
  5. Step 5: Solve for x
    x = 59,386,030.82/8,449.80
  6. Step 6: Final answer
    x = 7,028.10

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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.