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Finding the Fourth Proportional to 52,903.96, 79,317 and 25,221.40

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Solution

The fourth proportional to 52,903.96, 79,317 and 25,221.40 is: 37,813.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,903.96 : 79,317 = 25,221.40 : x
  2. Step 2: Convert to fraction form
    52,903.96/79,317 = 25,221.40/x
  3. Step 3: Cross multiply
    52,903.96x = 79,317 × 25,221.40
  4. Step 4: Simplify right side
    52,903.96x = 2,000,485,783.80
  5. Step 5: Solve for x
    x = 2,000,485,783.80/52,903.96
  6. Step 6: Final answer
    x = 37,813.54

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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.