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Finding the Fourth Proportional to 5,557.08, 8,338.08 and 1,859.88

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Solution

The fourth proportional to 5,557.08, 8,338.08 and 1,859.88 is: 2,790.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,557.08 : 8,338.08 = 1,859.88 : x
  2. Step 2: Convert to fraction form
    5,557.08/8,338.08 = 1,859.88/x
  3. Step 3: Cross multiply
    5,557.08x = 8,338.08 × 1,859.88
  4. Step 4: Simplify right side
    5,557.08x = 15,507,828.23
  5. Step 5: Solve for x
    x = 15,507,828.23/5,557.08
  6. Step 6: Final answer
    x = 2,790.64

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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.