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Finding the Fourth Proportional to 12,354.53, 18,531.95 and 4,034.48

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Solution

The fourth proportional to 12,354.53, 18,531.95 and 4,034.48 is: 6,051.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,354.53 : 18,531.95 = 4,034.48 : x
  2. Step 2: Convert to fraction form
    12,354.53/18,531.95 = 4,034.48/x
  3. Step 3: Cross multiply
    12,354.53x = 18,531.95 × 4,034.48
  4. Step 4: Simplify right side
    12,354.53x = 74,766,668.80
  5. Step 5: Solve for x
    x = 74,766,668.80/12,354.53
  6. Step 6: Final answer
    x = 6,051.76

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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.