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Finding the Fourth Proportional to 19,018.77, 28,502.69 and 10,694.67

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Solution

The fourth proportional to 19,018.77, 28,502.69 and 10,694.67 is: 16,027.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,018.77 : 28,502.69 = 10,694.67 : x
  2. Step 2: Convert to fraction form
    19,018.77/28,502.69 = 10,694.67/x
  3. Step 3: Cross multiply
    19,018.77x = 28,502.69 × 10,694.67
  4. Step 4: Simplify right side
    19,018.77x = 304,826,810.19
  5. Step 5: Solve for x
    x = 304,826,810.19/19,018.77
  6. Step 6: Final answer
    x = 16,027.68

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.