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Finding the Fourth Proportional to 8,803.80, 12,147.12 and 5,268.24

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Solution

The fourth proportional to 8,803.80, 12,147.12 and 5,268.24 is: 7,268.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,803.80 : 12,147.12 = 5,268.24 : x
  2. Step 2: Convert to fraction form
    8,803.80/12,147.12 = 5,268.24/x
  3. Step 3: Cross multiply
    8,803.80x = 12,147.12 × 5,268.24
  4. Step 4: Simplify right side
    8,803.80x = 63,993,943.47
  5. Step 5: Solve for x
    x = 63,993,943.47/8,803.80
  6. Step 6: Final answer
    x = 7,268.90

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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.