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Finding the Fourth Proportional to 19,584.64, 29,190.29 and 18,477.64

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Solution

The fourth proportional to 19,584.64, 29,190.29 and 18,477.64 is: 27,540.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,584.64 : 29,190.29 = 18,477.64 : x
  2. Step 2: Convert to fraction form
    19,584.64/29,190.29 = 18,477.64/x
  3. Step 3: Cross multiply
    19,584.64x = 29,190.29 × 18,477.64
  4. Step 4: Simplify right side
    19,584.64x = 539,367,670.12
  5. Step 5: Solve for x
    x = 539,367,670.12/19,584.64
  6. Step 6: Final answer
    x = 27,540.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.