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Finding the Fourth Proportional to 16,956.80, 25,437.92 and 8,192.40

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Solution

The fourth proportional to 16,956.80, 25,437.92 and 8,192.40 is: 12,289.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,956.80 : 25,437.92 = 8,192.40 : x
  2. Step 2: Convert to fraction form
    16,956.80/25,437.92 = 8,192.40/x
  3. Step 3: Cross multiply
    16,956.80x = 25,437.92 × 8,192.40
  4. Step 4: Simplify right side
    16,956.80x = 208,397,615.81
  5. Step 5: Solve for x
    x = 208,397,615.81/16,956.80
  6. Step 6: Final answer
    x = 12,289.91

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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.