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Finding the Fourth Proportional to 6,865.79, 9,471.77 and 4,626.85

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Solution

The fourth proportional to 6,865.79, 9,471.77 and 4,626.85 is: 6,383.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,865.79 : 9,471.77 = 4,626.85 : x
  2. Step 2: Convert to fraction form
    6,865.79/9,471.77 = 4,626.85/x
  3. Step 3: Cross multiply
    6,865.79x = 9,471.77 × 4,626.85
  4. Step 4: Simplify right side
    6,865.79x = 43,824,459.02
  5. Step 5: Solve for x
    x = 43,824,459.02/6,865.79
  6. Step 6: Final answer
    x = 6,383.02

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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.