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Finding the Fourth Proportional to 13,470.49, 20,251.10 and 11,023.08

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Solution

The fourth proportional to 13,470.49, 20,251.10 and 11,023.08 is: 16,571.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,470.49 : 20,251.10 = 11,023.08 : x
  2. Step 2: Convert to fraction form
    13,470.49/20,251.10 = 11,023.08/x
  3. Step 3: Cross multiply
    13,470.49x = 20,251.10 × 11,023.08
  4. Step 4: Simplify right side
    13,470.49x = 223,229,495.39
  5. Step 5: Solve for x
    x = 223,229,495.39/13,470.49
  6. Step 6: Final answer
    x = 16,571.74

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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.