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Finding the Fourth Proportional to 12,797.16, 17,670.96 and 8,025.09

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Solution

The fourth proportional to 12,797.16, 17,670.96 and 8,025.09 is: 11,081.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,797.16 : 17,670.96 = 8,025.09 : x
  2. Step 2: Convert to fraction form
    12,797.16/17,670.96 = 8,025.09/x
  3. Step 3: Cross multiply
    12,797.16x = 17,670.96 × 8,025.09
  4. Step 4: Simplify right side
    12,797.16x = 141,811,004.26
  5. Step 5: Solve for x
    x = 141,811,004.26/12,797.16
  6. Step 6: Final answer
    x = 11,081.45

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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.