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Finding the Fourth Proportional to 61,356.50, 92,049.56 and 21,369.63

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Solution

The fourth proportional to 61,356.50, 92,049.56 and 21,369.63 is: 32,059.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,356.50 : 92,049.56 = 21,369.63 : x
  2. Step 2: Convert to fraction form
    61,356.50/92,049.56 = 21,369.63/x
  3. Step 3: Cross multiply
    61,356.50x = 92,049.56 × 21,369.63
  4. Step 4: Simplify right side
    61,356.50x = 1,967,065,357.34
  5. Step 5: Solve for x
    x = 1,967,065,357.34/61,356.50
  6. Step 6: Final answer
    x = 32,059.61

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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.