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Finding the Fourth Proportional to 14,406.62, 19,888.97 and 9,954.32

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Solution

The fourth proportional to 14,406.62, 19,888.97 and 9,954.32 is: 13,742.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,406.62 : 19,888.97 = 9,954.32 : x
  2. Step 2: Convert to fraction form
    14,406.62/19,888.97 = 9,954.32/x
  3. Step 3: Cross multiply
    14,406.62x = 19,888.97 × 9,954.32
  4. Step 4: Simplify right side
    14,406.62x = 197,981,022.63
  5. Step 5: Solve for x
    x = 197,981,022.63/14,406.62
  6. Step 6: Final answer
    x = 13,742.37

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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.