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Finding the Fourth Proportional to 16,751.80, 25,127.94 and 6,891.16

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Solution

The fourth proportional to 16,751.80, 25,127.94 and 6,891.16 is: 10,336.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,751.80 : 25,127.94 = 6,891.16 : x
  2. Step 2: Convert to fraction form
    16,751.80/25,127.94 = 6,891.16/x
  3. Step 3: Cross multiply
    16,751.80x = 25,127.94 × 6,891.16
  4. Step 4: Simplify right side
    16,751.80x = 173,160,655.01
  5. Step 5: Solve for x
    x = 173,160,655.01/16,751.80
  6. Step 6: Final answer
    x = 10,336.84

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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.