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Finding the Fourth Proportional to 6,472.84, 9,709.46 and 2,090.32

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Solution

The fourth proportional to 6,472.84, 9,709.46 and 2,090.32 is: 3,135.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,472.84 : 9,709.46 = 2,090.32 : x
  2. Step 2: Convert to fraction form
    6,472.84/9,709.46 = 2,090.32/x
  3. Step 3: Cross multiply
    6,472.84x = 9,709.46 × 2,090.32
  4. Step 4: Simplify right side
    6,472.84x = 20,295,878.43
  5. Step 5: Solve for x
    x = 20,295,878.43/6,472.84
  6. Step 6: Final answer
    x = 3,135.54

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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.