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Finding the Fourth Proportional to 22,357.63, 30,860.40 and 14,399.83

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Solution

The fourth proportional to 22,357.63, 30,860.40 and 14,399.83 is: 19,876.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,357.63 : 30,860.40 = 14,399.83 : x
  2. Step 2: Convert to fraction form
    22,357.63/30,860.40 = 14,399.83/x
  3. Step 3: Cross multiply
    22,357.63x = 30,860.40 × 14,399.83
  4. Step 4: Simplify right side
    22,357.63x = 444,384,513.73
  5. Step 5: Solve for x
    x = 444,384,513.73/22,357.63
  6. Step 6: Final answer
    x = 19,876.19

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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.