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Finding the Fourth Proportional to 18,873.27, 28,310.63 and 7,030.04

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Solution

The fourth proportional to 18,873.27, 28,310.63 and 7,030.04 is: 10,545.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,873.27 : 28,310.63 = 7,030.04 : x
  2. Step 2: Convert to fraction form
    18,873.27/28,310.63 = 7,030.04/x
  3. Step 3: Cross multiply
    18,873.27x = 28,310.63 × 7,030.04
  4. Step 4: Simplify right side
    18,873.27x = 199,024,684.62
  5. Step 5: Solve for x
    x = 199,024,684.62/18,873.27
  6. Step 6: Final answer
    x = 10,545.32

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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.