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Finding the Fourth Proportional to 6,912.23, 9,525.24 and 4,917.20

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Solution

The fourth proportional to 6,912.23, 9,525.24 and 4,917.20 is: 6,776.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,912.23 : 9,525.24 = 4,917.20 : x
  2. Step 2: Convert to fraction form
    6,912.23/9,525.24 = 4,917.20/x
  3. Step 3: Cross multiply
    6,912.23x = 9,525.24 × 4,917.20
  4. Step 4: Simplify right side
    6,912.23x = 46,837,462.50
  5. Step 5: Solve for x
    x = 46,837,462.50/6,912.23
  6. Step 6: Final answer
    x = 6,776.03

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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.