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Finding the Fourth Proportional to 17,709.99, 26,555.13 and 8,211.93

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Solution

The fourth proportional to 17,709.99, 26,555.13 and 8,211.93 is: 12,313.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,709.99 : 26,555.13 = 8,211.93 : x
  2. Step 2: Convert to fraction form
    17,709.99/26,555.13 = 8,211.93/x
  3. Step 3: Cross multiply
    17,709.99x = 26,555.13 × 8,211.93
  4. Step 4: Simplify right side
    17,709.99x = 218,068,868.70
  5. Step 5: Solve for x
    x = 218,068,868.70/17,709.99
  6. Step 6: Final answer
    x = 12,313.33

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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.