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Finding the Fourth Proportional to 21,674.40, 32,512.54 and 7,452.68

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Solution

The fourth proportional to 21,674.40, 32,512.54 and 7,452.68 is: 11,179.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,674.40 : 32,512.54 = 7,452.68 : x
  2. Step 2: Convert to fraction form
    21,674.40/32,512.54 = 7,452.68/x
  3. Step 3: Cross multiply
    21,674.40x = 32,512.54 × 7,452.68
  4. Step 4: Simplify right side
    21,674.40x = 242,305,389.39
  5. Step 5: Solve for x
    x = 242,305,389.39/21,674.40
  6. Step 6: Final answer
    x = 11,179.33

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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.