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Finding the Fourth Proportional to 19,367.68, 26,726.88 and 10,984

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Solution

The fourth proportional to 19,367.68, 26,726.88 and 10,984 is: 15,157.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,367.68 : 26,726.88 = 10,984 : x
  2. Step 2: Convert to fraction form
    19,367.68/26,726.88 = 10,984/x
  3. Step 3: Cross multiply
    19,367.68x = 26,726.88 × 10,984
  4. Step 4: Simplify right side
    19,367.68x = 293,568,049.92
  5. Step 5: Solve for x
    x = 293,568,049.92/19,367.68
  6. Step 6: Final answer
    x = 15,157.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.