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Finding the Fourth Proportional to 4,470.28, 6,699.90 and 3,241.90

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Solution

The fourth proportional to 4,470.28, 6,699.90 and 3,241.90 is: 4,858.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,470.28 : 6,699.90 = 3,241.90 : x
  2. Step 2: Convert to fraction form
    4,470.28/6,699.90 = 3,241.90/x
  3. Step 3: Cross multiply
    4,470.28x = 6,699.90 × 3,241.90
  4. Step 4: Simplify right side
    4,470.28x = 21,720,405.81
  5. Step 5: Solve for x
    x = 21,720,405.81/4,470.28
  6. Step 6: Final answer
    x = 4,858.85

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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.