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Finding the Fourth Proportional to 18,351.90, 25,327.08 and 10,396.08

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Solution

The fourth proportional to 18,351.90, 25,327.08 and 10,396.08 is: 14,347.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,351.90 : 25,327.08 = 10,396.08 : x
  2. Step 2: Convert to fraction form
    18,351.90/25,327.08 = 10,396.08/x
  3. Step 3: Cross multiply
    18,351.90x = 25,327.08 × 10,396.08
  4. Step 4: Simplify right side
    18,351.90x = 263,302,349.85
  5. Step 5: Solve for x
    x = 263,302,349.85/18,351.90
  6. Step 6: Final answer
    x = 14,347.42

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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.