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Finding the Fourth Proportional to 4,769.94, 7,119.83 and 4,435.68

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Solution

The fourth proportional to 4,769.94, 7,119.83 and 4,435.68 is: 6,620.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,769.94 : 7,119.83 = 4,435.68 : x
  2. Step 2: Convert to fraction form
    4,769.94/7,119.83 = 4,435.68/x
  3. Step 3: Cross multiply
    4,769.94x = 7,119.83 × 4,435.68
  4. Step 4: Simplify right side
    4,769.94x = 31,581,287.53
  5. Step 5: Solve for x
    x = 31,581,287.53/4,769.94
  6. Step 6: Final answer
    x = 6,620.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.