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Finding the Fourth Proportional to 8,693.42, 13,041.15 and 3,149.38

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Solution

The fourth proportional to 8,693.42, 13,041.15 and 3,149.38 is: 4,724.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,693.42 : 13,041.15 = 3,149.38 : x
  2. Step 2: Convert to fraction form
    8,693.42/13,041.15 = 3,149.38/x
  3. Step 3: Cross multiply
    8,693.42x = 13,041.15 × 3,149.38
  4. Step 4: Simplify right side
    8,693.42x = 41,071,536.99
  5. Step 5: Solve for x
    x = 41,071,536.99/8,693.42
  6. Step 6: Final answer
    x = 4,724.44

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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.