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Finding the Fourth Proportional to 16,805.39, 25,212.23 and 6,947.48

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Solution

The fourth proportional to 16,805.39, 25,212.23 and 6,947.48 is: 10,422.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,805.39 : 25,212.23 = 6,947.48 : x
  2. Step 2: Convert to fraction form
    16,805.39/25,212.23 = 6,947.48/x
  3. Step 3: Cross multiply
    16,805.39x = 25,212.23 × 6,947.48
  4. Step 4: Simplify right side
    16,805.39x = 175,161,428.94
  5. Step 5: Solve for x
    x = 175,161,428.94/16,805.39
  6. Step 6: Final answer
    x = 10,422.93

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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.