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Finding the Fourth Proportional to 19,803.42, 29,708.42 and 7,323.48

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Solution

The fourth proportional to 19,803.42, 29,708.42 and 7,323.48 is: 10,986.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,803.42 : 29,708.42 = 7,323.48 : x
  2. Step 2: Convert to fraction form
    19,803.42/29,708.42 = 7,323.48/x
  3. Step 3: Cross multiply
    19,803.42x = 29,708.42 × 7,323.48
  4. Step 4: Simplify right side
    19,803.42x = 217,568,983.08
  5. Step 5: Solve for x
    x = 217,568,983.08/19,803.42
  6. Step 6: Final answer
    x = 10,986.43

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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.