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Finding the Fourth Proportional to 17,388.19, 26,047.49 and 8,015.39

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Solution

The fourth proportional to 17,388.19, 26,047.49 and 8,015.39 is: 12,007.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,388.19 : 26,047.49 = 8,015.39 : x
  2. Step 2: Convert to fraction form
    17,388.19/26,047.49 = 8,015.39/x
  3. Step 3: Cross multiply
    17,388.19x = 26,047.49 × 8,015.39
  4. Step 4: Simplify right side
    17,388.19x = 208,780,660.63
  5. Step 5: Solve for x
    x = 208,780,660.63/17,388.19
  6. Step 6: Final answer
    x = 12,007.04

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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.