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Finding the Fourth Proportional to 16,955.63, 25,436.63 and 6,824.78

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Solution

The fourth proportional to 16,955.63, 25,436.63 and 6,824.78 is: 10,238.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,955.63 : 25,436.63 = 6,824.78 : x
  2. Step 2: Convert to fraction form
    16,955.63/25,436.63 = 6,824.78/x
  3. Step 3: Cross multiply
    16,955.63x = 25,436.63 × 6,824.78
  4. Step 4: Simplify right side
    16,955.63x = 173,599,403.69
  5. Step 5: Solve for x
    x = 173,599,403.69/16,955.63
  6. Step 6: Final answer
    x = 10,238.45

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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.