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Finding the Fourth Proportional to 4,673.70, 6,405.89 and 4,641.30

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Solution

The fourth proportional to 4,673.70, 6,405.89 and 4,641.30 is: 6,361.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,673.70 : 6,405.89 = 4,641.30 : x
  2. Step 2: Convert to fraction form
    4,673.70/6,405.89 = 4,641.30/x
  3. Step 3: Cross multiply
    4,673.70x = 6,405.89 × 4,641.30
  4. Step 4: Simplify right side
    4,673.70x = 29,731,634.05
  5. Step 5: Solve for x
    x = 29,731,634.05/4,673.70
  6. Step 6: Final answer
    x = 6,361.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.