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Finding the Fourth Proportional to 18,711.41, 28,063.92 and 6,230.01

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Solution

The fourth proportional to 18,711.41, 28,063.92 and 6,230.01 is: 9,343.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,711.41 : 28,063.92 = 6,230.01 : x
  2. Step 2: Convert to fraction form
    18,711.41/28,063.92 = 6,230.01/x
  3. Step 3: Cross multiply
    18,711.41x = 28,063.92 × 6,230.01
  4. Step 4: Simplify right side
    18,711.41x = 174,838,595.80
  5. Step 5: Solve for x
    x = 174,838,595.80/18,711.41
  6. Step 6: Final answer
    x = 9,343.96

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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.