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Finding the Fourth Proportional to 25,626.80, 38,452.50 and 13,940.02

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Solution

The fourth proportional to 25,626.80, 38,452.50 and 13,940.02 is: 20,916.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,626.80 : 38,452.50 = 13,940.02 : x
  2. Step 2: Convert to fraction form
    25,626.80/38,452.50 = 13,940.02/x
  3. Step 3: Cross multiply
    25,626.80x = 38,452.50 × 13,940.02
  4. Step 4: Simplify right side
    25,626.80x = 536,028,450.82
  5. Step 5: Solve for x
    x = 536,028,450.82/25,626.80
  6. Step 6: Final answer
    x = 20,916.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.