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Finding the Fourth Proportional to 5,163.32, 7,746.94 and 2,391.32

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Solution

The fourth proportional to 5,163.32, 7,746.94 and 2,391.32 is: 3,587.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,163.32 : 7,746.94 = 2,391.32 : x
  2. Step 2: Convert to fraction form
    5,163.32/7,746.94 = 2,391.32/x
  3. Step 3: Cross multiply
    5,163.32x = 7,746.94 × 2,391.32
  4. Step 4: Simplify right side
    5,163.32x = 18,525,412.56
  5. Step 5: Solve for x
    x = 18,525,412.56/5,163.32
  6. Step 6: Final answer
    x = 3,587.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.