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Finding the Fourth Proportional to 9,230.00, 12,739.73 and 5,252.40

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Solution

The fourth proportional to 9,230.00, 12,739.73 and 5,252.40 is: 7,249.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,230.00 : 12,739.73 = 5,252.40 : x
  2. Step 2: Convert to fraction form
    9,230.00/12,739.73 = 5,252.40/x
  3. Step 3: Cross multiply
    9,230.00x = 12,739.73 × 5,252.40
  4. Step 4: Simplify right side
    9,230.00x = 66,914,131.59
  5. Step 5: Solve for x
    x = 66,914,131.59/9,230.00
  6. Step 6: Final answer
    x = 7,249.64

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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.