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Finding the Fourth Proportional to 5,395.35, 7,446.09 and 3,157.09

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Solution

The fourth proportional to 5,395.35, 7,446.09 and 3,157.09 is: 4,357.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,395.35 : 7,446.09 = 3,157.09 : x
  2. Step 2: Convert to fraction form
    5,395.35/7,446.09 = 3,157.09/x
  3. Step 3: Cross multiply
    5,395.35x = 7,446.09 × 3,157.09
  4. Step 4: Simplify right side
    5,395.35x = 23,507,976.28
  5. Step 5: Solve for x
    x = 23,507,976.28/5,395.35
  6. Step 6: Final answer
    x = 4,357.08

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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.