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Finding the Fourth Proportional to 17,809.81, 26,698.85 and 8,443.98

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Solution

The fourth proportional to 17,809.81, 26,698.85 and 8,443.98 is: 12,658.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,809.81 : 26,698.85 = 8,443.98 : x
  2. Step 2: Convert to fraction form
    17,809.81/26,698.85 = 8,443.98/x
  3. Step 3: Cross multiply
    17,809.81x = 26,698.85 × 8,443.98
  4. Step 4: Simplify right side
    17,809.81x = 225,444,544.87
  5. Step 5: Solve for x
    x = 225,444,544.87/17,809.81
  6. Step 6: Final answer
    x = 12,658.45

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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.