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Finding the Fourth Proportional to 13,501.92, 18,619.02 and 9,025.68

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Solution

The fourth proportional to 13,501.92, 18,619.02 and 9,025.68 is: 12,446.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,501.92 : 18,619.02 = 9,025.68 : x
  2. Step 2: Convert to fraction form
    13,501.92/18,619.02 = 9,025.68/x
  3. Step 3: Cross multiply
    13,501.92x = 18,619.02 × 9,025.68
  4. Step 4: Simplify right side
    13,501.92x = 168,049,316.43
  5. Step 5: Solve for x
    x = 168,049,316.43/13,501.92
  6. Step 6: Final answer
    x = 12,446.33

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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.