Home / 7,655.38-11,485.63-2,975.54

Finding the Fourth Proportional to 7,655.38, 11,485.63 and 2,975.54

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Solution

The fourth proportional to 7,655.38, 11,485.63 and 2,975.54 is: 4,464.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,655.38 : 11,485.63 = 2,975.54 : x
  2. Step 2: Convert to fraction form
    7,655.38/11,485.63 = 2,975.54/x
  3. Step 3: Cross multiply
    7,655.38x = 11,485.63 × 2,975.54
  4. Step 4: Simplify right side
    7,655.38x = 34,175,972.77
  5. Step 5: Solve for x
    x = 34,175,972.77/7,655.38
  6. Step 6: Final answer
    x = 4,464.31

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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.