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Finding the Fourth Proportional to 14,640.63, 20,204.15 and 8,353.01

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Solution

The fourth proportional to 14,640.63, 20,204.15 and 8,353.01 is: 11,527.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,640.63 : 20,204.15 = 8,353.01 : x
  2. Step 2: Convert to fraction form
    14,640.63/20,204.15 = 8,353.01/x
  3. Step 3: Cross multiply
    14,640.63x = 20,204.15 × 8,353.01
  4. Step 4: Simplify right side
    14,640.63x = 168,765,324.21
  5. Step 5: Solve for x
    x = 168,765,324.21/14,640.63
  6. Step 6: Final answer
    x = 11,527.19

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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.