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Finding the Fourth Proportional to 19,608.68, 29,394.16 and 12,568.97

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Solution

The fourth proportional to 19,608.68, 29,394.16 and 12,568.97 is: 18,841.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,608.68 : 29,394.16 = 12,568.97 : x
  2. Step 2: Convert to fraction form
    19,608.68/29,394.16 = 12,568.97/x
  3. Step 3: Cross multiply
    19,608.68x = 29,394.16 × 12,568.97
  4. Step 4: Simplify right side
    19,608.68x = 369,454,357.28
  5. Step 5: Solve for x
    x = 369,454,357.28/19,608.68
  6. Step 6: Final answer
    x = 18,841.37

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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.