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Finding the Fourth Proportional to 19,234.53, 28,898.04 and 18,172.47

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Solution

The fourth proportional to 19,234.53, 28,898.04 and 18,172.47 is: 27,302.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,234.53 : 28,898.04 = 18,172.47 : x
  2. Step 2: Convert to fraction form
    19,234.53/28,898.04 = 18,172.47/x
  3. Step 3: Cross multiply
    19,234.53x = 28,898.04 × 18,172.47
  4. Step 4: Simplify right side
    19,234.53x = 525,148,764.96
  5. Step 5: Solve for x
    x = 525,148,764.96/19,234.53
  6. Step 6: Final answer
    x = 27,302.40

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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.