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Finding the Fourth Proportional to 21,786.49, 32,679.05 and 6,204.11

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Solution

The fourth proportional to 21,786.49, 32,679.05 and 6,204.11 is: 9,305.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,786.49 : 32,679.05 = 6,204.11 : x
  2. Step 2: Convert to fraction form
    21,786.49/32,679.05 = 6,204.11/x
  3. Step 3: Cross multiply
    21,786.49x = 32,679.05 × 6,204.11
  4. Step 4: Simplify right side
    21,786.49x = 202,744,518.10
  5. Step 5: Solve for x
    x = 202,744,518.10/21,786.49
  6. Step 6: Final answer
    x = 9,305.98

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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.