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Finding the Fourth Proportional to 16,992.88, 23,449.88 and 9,438.92

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Solution

The fourth proportional to 16,992.88, 23,449.88 and 9,438.92 is: 13,025.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,992.88 : 23,449.88 = 9,438.92 : x
  2. Step 2: Convert to fraction form
    16,992.88/23,449.88 = 9,438.92/x
  3. Step 3: Cross multiply
    16,992.88x = 23,449.88 × 9,438.92
  4. Step 4: Simplify right side
    16,992.88x = 221,341,541.33
  5. Step 5: Solve for x
    x = 221,341,541.33/16,992.88
  6. Step 6: Final answer
    x = 13,025.55

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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.