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Finding the Fourth Proportional to 6,661.50, 9,992.25 and 1,797.50

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Solution

The fourth proportional to 6,661.50, 9,992.25 and 1,797.50 is: 2,696.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,661.50 : 9,992.25 = 1,797.50 : x
  2. Step 2: Convert to fraction form
    6,661.50/9,992.25 = 1,797.50/x
  3. Step 3: Cross multiply
    6,661.50x = 9,992.25 × 1,797.50
  4. Step 4: Simplify right side
    6,661.50x = 17,961,069.38
  5. Step 5: Solve for x
    x = 17,961,069.38/6,661.50
  6. Step 6: Final answer
    x = 2,696.25

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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.