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Finding the Fourth Proportional to 5,141.82, 7,049.40 and 5,048.40

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Solution

The fourth proportional to 5,141.82, 7,049.40 and 5,048.40 is: 6,921.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,141.82 : 7,049.40 = 5,048.40 : x
  2. Step 2: Convert to fraction form
    5,141.82/7,049.40 = 5,048.40/x
  3. Step 3: Cross multiply
    5,141.82x = 7,049.40 × 5,048.40
  4. Step 4: Simplify right side
    5,141.82x = 35,588,190.96
  5. Step 5: Solve for x
    x = 35,588,190.96/5,141.82
  6. Step 6: Final answer
    x = 6,921.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.