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Finding the Fourth Proportional to 6,918.03, 9,548.42 and 4,399.65

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Solution

The fourth proportional to 6,918.03, 9,548.42 and 4,399.65 is: 6,072.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,918.03 : 9,548.42 = 4,399.65 : x
  2. Step 2: Convert to fraction form
    6,918.03/9,548.42 = 4,399.65/x
  3. Step 3: Cross multiply
    6,918.03x = 9,548.42 × 4,399.65
  4. Step 4: Simplify right side
    6,918.03x = 42,009,684.05
  5. Step 5: Solve for x
    x = 42,009,684.05/6,918.03
  6. Step 6: Final answer
    x = 6,072.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.