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Finding the Fourth Proportional to 17,804.68, 26,709.06 and 7,942.72

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Solution

The fourth proportional to 17,804.68, 26,709.06 and 7,942.72 is: 11,914.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,804.68 : 26,709.06 = 7,942.72 : x
  2. Step 2: Convert to fraction form
    17,804.68/26,709.06 = 7,942.72/x
  3. Step 3: Cross multiply
    17,804.68x = 26,709.06 × 7,942.72
  4. Step 4: Simplify right side
    17,804.68x = 212,142,451.50
  5. Step 5: Solve for x
    x = 212,142,451.50/17,804.68
  6. Step 6: Final answer
    x = 11,914.99

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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.