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Finding the Fourth Proportional to 63,188.39, 94,803.08 and 18,815.51

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Solution

The fourth proportional to 63,188.39, 94,803.08 and 18,815.51 is: 28,229.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,188.39 : 94,803.08 = 18,815.51 : x
  2. Step 2: Convert to fraction form
    63,188.39/94,803.08 = 18,815.51/x
  3. Step 3: Cross multiply
    63,188.39x = 94,803.08 × 18,815.51
  4. Step 4: Simplify right side
    63,188.39x = 1,783,768,442.70
  5. Step 5: Solve for x
    x = 1,783,768,442.70/63,188.39
  6. Step 6: Final answer
    x = 28,229.37

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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.