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Finding the Fourth Proportional to 25,604.68, 38,406.84 and 7,136.68

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Solution

The fourth proportional to 25,604.68, 38,406.84 and 7,136.68 is: 10,704.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,604.68 : 38,406.84 = 7,136.68 : x
  2. Step 2: Convert to fraction form
    25,604.68/38,406.84 = 7,136.68/x
  3. Step 3: Cross multiply
    25,604.68x = 38,406.84 × 7,136.68
  4. Step 4: Simplify right side
    25,604.68x = 274,097,326.89
  5. Step 5: Solve for x
    x = 274,097,326.89/25,604.68
  6. Step 6: Final answer
    x = 10,704.97

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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.