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Finding the Fourth Proportional to 3,709.77, 5,566.15 and 1,628.67

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Solution

The fourth proportional to 3,709.77, 5,566.15 and 1,628.67 is: 2,443.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,709.77 : 5,566.15 = 1,628.67 : x
  2. Step 2: Convert to fraction form
    3,709.77/5,566.15 = 1,628.67/x
  3. Step 3: Cross multiply
    3,709.77x = 5,566.15 × 1,628.67
  4. Step 4: Simplify right side
    3,709.77x = 9,065,444.43
  5. Step 5: Solve for x
    x = 9,065,444.43/3,709.77
  6. Step 6: Final answer
    x = 2,443.67

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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.