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Finding the Fourth Proportional to 5,781.13, 8,629.85 and 5,080.48

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Solution

The fourth proportional to 5,781.13, 8,629.85 and 5,080.48 is: 7,583.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,781.13 : 8,629.85 = 5,080.48 : x
  2. Step 2: Convert to fraction form
    5,781.13/8,629.85 = 5,080.48/x
  3. Step 3: Cross multiply
    5,781.13x = 8,629.85 × 5,080.48
  4. Step 4: Simplify right side
    5,781.13x = 43,843,771.45
  5. Step 5: Solve for x
    x = 43,843,771.45/5,781.13
  6. Step 6: Final answer
    x = 7,583.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.