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Finding the Fourth Proportional to 5,738.31, 7,908.04 and 4,142.14

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Solution

The fourth proportional to 5,738.31, 7,908.04 and 4,142.14 is: 5,708.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,738.31 : 7,908.04 = 4,142.14 : x
  2. Step 2: Convert to fraction form
    5,738.31/7,908.04 = 4,142.14/x
  3. Step 3: Cross multiply
    5,738.31x = 7,908.04 × 4,142.14
  4. Step 4: Simplify right side
    5,738.31x = 32,756,208.81
  5. Step 5: Solve for x
    x = 32,756,208.81/5,738.31
  6. Step 6: Final answer
    x = 5,708.34

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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.