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Finding the Fourth Proportional to 18,764, 25,884.08 and 12,050.66

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Solution

The fourth proportional to 18,764, 25,884.08 and 12,050.66 is: 16,623.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,764 : 25,884.08 = 12,050.66 : x
  2. Step 2: Convert to fraction form
    18,764/25,884.08 = 12,050.66/x
  3. Step 3: Cross multiply
    18,764x = 25,884.08 × 12,050.66
  4. Step 4: Simplify right side
    18,764x = 311,920,118.07
  5. Step 5: Solve for x
    x = 311,920,118.07/18,764
  6. Step 6: Final answer
    x = 16,623.33

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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.