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Finding the Fourth Proportional to 17,992.59, 26,990.69 and 5,512.47

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Solution

The fourth proportional to 17,992.59, 26,990.69 and 5,512.47 is: 8,269.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,992.59 : 26,990.69 = 5,512.47 : x
  2. Step 2: Convert to fraction form
    17,992.59/26,990.69 = 5,512.47/x
  3. Step 3: Cross multiply
    17,992.59x = 26,990.69 × 5,512.47
  4. Step 4: Simplify right side
    17,992.59x = 148,785,368.90
  5. Step 5: Solve for x
    x = 148,785,368.90/17,992.59
  6. Step 6: Final answer
    x = 8,269.26

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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.