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Finding the Fourth Proportional to 3,571.70, 5,368.48 and 3,495.15

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Solution

The fourth proportional to 3,571.70, 5,368.48 and 3,495.15 is: 5,253.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,571.70 : 5,368.48 = 3,495.15 : x
  2. Step 2: Convert to fraction form
    3,571.70/5,368.48 = 3,495.15/x
  3. Step 3: Cross multiply
    3,571.70x = 5,368.48 × 3,495.15
  4. Step 4: Simplify right side
    3,571.70x = 18,763,634.13
  5. Step 5: Solve for x
    x = 18,763,634.13/3,571.70
  6. Step 6: Final answer
    x = 5,253.43

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1.5x scale

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.