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Finding the Fourth Proportional to 17,304.32, 25,942.44 and 15,920.40

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Solution

The fourth proportional to 17,304.32, 25,942.44 and 15,920.40 is: 23,867.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,304.32 : 25,942.44 = 15,920.40 : x
  2. Step 2: Convert to fraction form
    17,304.32/25,942.44 = 15,920.40/x
  3. Step 3: Cross multiply
    17,304.32x = 25,942.44 × 15,920.40
  4. Step 4: Simplify right side
    17,304.32x = 413,014,021.78
  5. Step 5: Solve for x
    x = 413,014,021.78/17,304.32
  6. Step 6: Final answer
    x = 23,867.68

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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.