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Finding the Fourth Proportional to 52,926.93, 79,286.60 and 30,693.60

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Solution

The fourth proportional to 52,926.93, 79,286.60 and 30,693.60 is: 45,980.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,926.93 : 79,286.60 = 30,693.60 : x
  2. Step 2: Convert to fraction form
    52,926.93/79,286.60 = 30,693.60/x
  3. Step 3: Cross multiply
    52,926.93x = 79,286.60 × 30,693.60
  4. Step 4: Simplify right side
    52,926.93x = 2,433,591,451.32
  5. Step 5: Solve for x
    x = 2,433,591,451.32/52,926.93
  6. Step 6: Final answer
    x = 45,980.21

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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.