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Finding the Fourth Proportional to 25,161.03, 37,739.34 and 8,520.69

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Solution

The fourth proportional to 25,161.03, 37,739.34 and 8,520.69 is: 12,780.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,161.03 : 37,739.34 = 8,520.69 : x
  2. Step 2: Convert to fraction form
    25,161.03/37,739.34 = 8,520.69/x
  3. Step 3: Cross multiply
    25,161.03x = 37,739.34 × 8,520.69
  4. Step 4: Simplify right side
    25,161.03x = 321,565,216.94
  5. Step 5: Solve for x
    x = 321,565,216.94/25,161.03
  6. Step 6: Final answer
    x = 12,780.29

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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.