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Finding the Fourth Proportional to 4,751.56, 7,128.44 and 1,464.58

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Solution

The fourth proportional to 4,751.56, 7,128.44 and 1,464.58 is: 2,197.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,751.56 : 7,128.44 = 1,464.58 : x
  2. Step 2: Convert to fraction form
    4,751.56/7,128.44 = 1,464.58/x
  3. Step 3: Cross multiply
    4,751.56x = 7,128.44 × 1,464.58
  4. Step 4: Simplify right side
    4,751.56x = 10,440,170.66
  5. Step 5: Solve for x
    x = 10,440,170.66/4,751.56
  6. Step 6: Final answer
    x = 2,197.21

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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.