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Finding the Fourth Proportional to 14,859.52, 20,506.37 and 8,891.44

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Solution

The fourth proportional to 14,859.52, 20,506.37 and 8,891.44 is: 12,270.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,859.52 : 20,506.37 = 8,891.44 : x
  2. Step 2: Convert to fraction form
    14,859.52/20,506.37 = 8,891.44/x
  3. Step 3: Cross multiply
    14,859.52x = 20,506.37 × 8,891.44
  4. Step 4: Simplify right side
    14,859.52x = 182,331,062.75
  5. Step 5: Solve for x
    x = 182,331,062.75/14,859.52
  6. Step 6: Final answer
    x = 12,270.32

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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.