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Finding the Fourth Proportional to 8,843.99, 12,204.74 and 5,485.55

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Solution

The fourth proportional to 8,843.99, 12,204.74 and 5,485.55 is: 7,570.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,843.99 : 12,204.74 = 5,485.55 : x
  2. Step 2: Convert to fraction form
    8,843.99/12,204.74 = 5,485.55/x
  3. Step 3: Cross multiply
    8,843.99x = 12,204.74 × 5,485.55
  4. Step 4: Simplify right side
    8,843.99x = 66,949,664.20
  5. Step 5: Solve for x
    x = 66,949,664.20/8,843.99
  6. Step 6: Final answer
    x = 7,570.08

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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.