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Finding the Fourth Proportional to 18,794.99, 25,924.64 and 12,089.13

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Solution

The fourth proportional to 18,794.99, 25,924.64 and 12,089.13 is: 16,675.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,794.99 : 25,924.64 = 12,089.13 : x
  2. Step 2: Convert to fraction form
    18,794.99/25,924.64 = 12,089.13/x
  3. Step 3: Cross multiply
    18,794.99x = 25,924.64 × 12,089.13
  4. Step 4: Simplify right side
    18,794.99x = 313,406,282.72
  5. Step 5: Solve for x
    x = 313,406,282.72/18,794.99
  6. Step 6: Final answer
    x = 16,675.00

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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.