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Finding the Fourth Proportional to 12,589.01, 18,883.51 and 11,546.08

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Solution

The fourth proportional to 12,589.01, 18,883.51 and 11,546.08 is: 17,319.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,589.01 : 18,883.51 = 11,546.08 : x
  2. Step 2: Convert to fraction form
    12,589.01/18,883.51 = 11,546.08/x
  3. Step 3: Cross multiply
    12,589.01x = 18,883.51 × 11,546.08
  4. Step 4: Simplify right side
    12,589.01x = 218,030,517.14
  5. Step 5: Solve for x
    x = 218,030,517.14/12,589.01
  6. Step 6: Final answer
    x = 17,319.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.