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Finding the Fourth Proportional to 17,986.92, 26,980.56 and 5,506.92

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Solution

The fourth proportional to 17,986.92, 26,980.56 and 5,506.92 is: 8,260.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,986.92 : 26,980.56 = 5,506.92 : x
  2. Step 2: Convert to fraction form
    17,986.92/26,980.56 = 5,506.92/x
  3. Step 3: Cross multiply
    17,986.92x = 26,980.56 × 5,506.92
  4. Step 4: Simplify right side
    17,986.92x = 148,579,785.48
  5. Step 5: Solve for x
    x = 148,579,785.48/17,986.92
  6. Step 6: Final answer
    x = 8,260.44

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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.