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Finding the Fourth Proportional to 4,936.21, 6,809.04 and 3,421.41

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Solution

The fourth proportional to 4,936.21, 6,809.04 and 3,421.41 is: 4,719.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,936.21 : 6,809.04 = 3,421.41 : x
  2. Step 2: Convert to fraction form
    4,936.21/6,809.04 = 3,421.41/x
  3. Step 3: Cross multiply
    4,936.21x = 6,809.04 × 3,421.41
  4. Step 4: Simplify right side
    4,936.21x = 23,296,492.01
  5. Step 5: Solve for x
    x = 23,296,492.01/4,936.21
  6. Step 6: Final answer
    x = 4,719.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.