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Finding the Fourth Proportional to 5,369.51, 7,410.11 and 3,131.03

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Solution

The fourth proportional to 5,369.51, 7,410.11 and 3,131.03 is: 4,320.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,369.51 : 7,410.11 = 3,131.03 : x
  2. Step 2: Convert to fraction form
    5,369.51/7,410.11 = 3,131.03/x
  3. Step 3: Cross multiply
    5,369.51x = 7,410.11 × 3,131.03
  4. Step 4: Simplify right side
    5,369.51x = 23,201,224.01
  5. Step 5: Solve for x
    x = 23,201,224.01/5,369.51
  6. Step 6: Final answer
    x = 4,320.92

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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.