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Finding the Fourth Proportional to 18,653.51, 27,977.51 and 6,804.51

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Solution

The fourth proportional to 18,653.51, 27,977.51 and 6,804.51 is: 10,205.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,653.51 : 27,977.51 = 6,804.51 : x
  2. Step 2: Convert to fraction form
    18,653.51/27,977.51 = 6,804.51/x
  3. Step 3: Cross multiply
    18,653.51x = 27,977.51 × 6,804.51
  4. Step 4: Simplify right side
    18,653.51x = 190,373,246.57
  5. Step 5: Solve for x
    x = 190,373,246.57/18,653.51
  6. Step 6: Final answer
    x = 10,205.76

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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.