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Finding the Fourth Proportional to 6,451.79, 8,903.83 and 4,855.56

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Solution

The fourth proportional to 6,451.79, 8,903.83 and 4,855.56 is: 6,700.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,451.79 : 8,903.83 = 4,855.56 : x
  2. Step 2: Convert to fraction form
    6,451.79/8,903.83 = 4,855.56/x
  3. Step 3: Cross multiply
    6,451.79x = 8,903.83 × 4,855.56
  4. Step 4: Simplify right side
    6,451.79x = 43,233,080.79
  5. Step 5: Solve for x
    x = 43,233,080.79/6,451.79
  6. Step 6: Final answer
    x = 6,700.94

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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.