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Finding the Fourth Proportional to 12,589.99, 18,883.89 and 5,924.90

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Solution

The fourth proportional to 12,589.99, 18,883.89 and 5,924.90 is: 8,886.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,589.99 : 18,883.89 = 5,924.90 : x
  2. Step 2: Convert to fraction form
    12,589.99/18,883.89 = 5,924.90/x
  3. Step 3: Cross multiply
    12,589.99x = 18,883.89 × 5,924.90
  4. Step 4: Simplify right side
    12,589.99x = 111,885,207.07
  5. Step 5: Solve for x
    x = 111,885,207.07/12,589.99
  6. Step 6: Final answer
    x = 8,886.84

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Similar ratio
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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.