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Finding the Fourth Proportional to 11,201.51, 16,790.54 and 4,178.69

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Solution

The fourth proportional to 11,201.51, 16,790.54 and 4,178.69 is: 6,263.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,201.51 : 16,790.54 = 4,178.69 : x
  2. Step 2: Convert to fraction form
    11,201.51/16,790.54 = 4,178.69/x
  3. Step 3: Cross multiply
    11,201.51x = 16,790.54 × 4,178.69
  4. Step 4: Simplify right side
    11,201.51x = 70,162,482.68
  5. Step 5: Solve for x
    x = 70,162,482.68/11,201.51
  6. Step 6: Final answer
    x = 6,263.67

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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.