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Finding the Fourth Proportional to 4,758.56, 7,139.04 and 1,836.08

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Solution

The fourth proportional to 4,758.56, 7,139.04 and 1,836.08 is: 2,754.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,758.56 : 7,139.04 = 1,836.08 : x
  2. Step 2: Convert to fraction form
    4,758.56/7,139.04 = 1,836.08/x
  3. Step 3: Cross multiply
    4,758.56x = 7,139.04 × 1,836.08
  4. Step 4: Simplify right side
    4,758.56x = 13,107,848.56
  5. Step 5: Solve for x
    x = 13,107,848.56/4,758.56
  6. Step 6: Final answer
    x = 2,754.58

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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.