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Finding the Fourth Proportional to 6,923.70, 9,540.45 and 5,346.90

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Solution

The fourth proportional to 6,923.70, 9,540.45 and 5,346.90 is: 7,367.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,923.70 : 9,540.45 = 5,346.90 : x
  2. Step 2: Convert to fraction form
    6,923.70/9,540.45 = 5,346.90/x
  3. Step 3: Cross multiply
    6,923.70x = 9,540.45 × 5,346.90
  4. Step 4: Simplify right side
    6,923.70x = 51,011,832.11
  5. Step 5: Solve for x
    x = 51,011,832.11/6,923.70
  6. Step 6: Final answer
    x = 7,367.71

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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.