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Finding the Fourth Proportional to 19,266.10, 28,899.15 and 18,358.90

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Solution

The fourth proportional to 19,266.10, 28,899.15 and 18,358.90 is: 27,538.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,266.10 : 28,899.15 = 18,358.90 : x
  2. Step 2: Convert to fraction form
    19,266.10/28,899.15 = 18,358.90/x
  3. Step 3: Cross multiply
    19,266.10x = 28,899.15 × 18,358.90
  4. Step 4: Simplify right side
    19,266.10x = 530,556,604.94
  5. Step 5: Solve for x
    x = 530,556,604.94/19,266.10
  6. Step 6: Final answer
    x = 27,538.35

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.