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Finding the Fourth Proportional to 18,992.24, 26,216.56 and 16,999.24

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Solution

The fourth proportional to 18,992.24, 26,216.56 and 16,999.24 is: 23,465.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,992.24 : 26,216.56 = 16,999.24 : x
  2. Step 2: Convert to fraction form
    18,992.24/26,216.56 = 16,999.24/x
  3. Step 3: Cross multiply
    18,992.24x = 26,216.56 × 16,999.24
  4. Step 4: Simplify right side
    18,992.24x = 445,661,595.41
  5. Step 5: Solve for x
    x = 445,661,595.41/18,992.24
  6. Step 6: Final answer
    x = 23,465.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.