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Finding the Fourth Proportional to 14,436.63, 19,922.49 and 8,148.87

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Solution

The fourth proportional to 14,436.63, 19,922.49 and 8,148.87 is: 11,245.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,436.63 : 19,922.49 = 8,148.87 : x
  2. Step 2: Convert to fraction form
    14,436.63/19,922.49 = 8,148.87/x
  3. Step 3: Cross multiply
    14,436.63x = 19,922.49 × 8,148.87
  4. Step 4: Simplify right side
    14,436.63x = 162,345,781.09
  5. Step 5: Solve for x
    x = 162,345,781.09/14,436.63
  6. Step 6: Final answer
    x = 11,245.41

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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.