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Finding the Fourth Proportional to 14,391.88, 21,589.02 and 4,003.62

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Solution

The fourth proportional to 14,391.88, 21,589.02 and 4,003.62 is: 6,005.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,391.88 : 21,589.02 = 4,003.62 : x
  2. Step 2: Convert to fraction form
    14,391.88/21,589.02 = 4,003.62/x
  3. Step 3: Cross multiply
    14,391.88x = 21,589.02 × 4,003.62
  4. Step 4: Simplify right side
    14,391.88x = 86,434,232.25
  5. Step 5: Solve for x
    x = 86,434,232.25/14,391.88
  6. Step 6: Final answer
    x = 6,005.76

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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.