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Finding the Fourth Proportional to 25,293.80, 37,953.48 and 12,157.22

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Solution

The fourth proportional to 25,293.80, 37,953.48 and 12,157.22 is: 18,241.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,293.80 : 37,953.48 = 12,157.22 : x
  2. Step 2: Convert to fraction form
    25,293.80/37,953.48 = 12,157.22/x
  3. Step 3: Cross multiply
    25,293.80x = 37,953.48 × 12,157.22
  4. Step 4: Simplify right side
    25,293.80x = 461,408,806.13
  5. Step 5: Solve for x
    x = 461,408,806.13/25,293.80
  6. Step 6: Final answer
    x = 18,241.97

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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.