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Finding the Fourth Proportional to 63,296, 94,921.30 and 18,914.48

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Solution

The fourth proportional to 63,296, 94,921.30 and 18,914.48 is: 28,364.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,296 : 94,921.30 = 18,914.48 : x
  2. Step 2: Convert to fraction form
    63,296/94,921.30 = 18,914.48/x
  3. Step 3: Cross multiply
    63,296x = 94,921.30 × 18,914.48
  4. Step 4: Simplify right side
    63,296x = 1,795,387,030.42
  5. Step 5: Solve for x
    x = 1,795,387,030.42/63,296
  6. Step 6: Final answer
    x = 28,364.94

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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.