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Finding the Fourth Proportional to 12,462.13, 18,693.18 and 3,696.96

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Solution

The fourth proportional to 12,462.13, 18,693.18 and 3,696.96 is: 5,545.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,462.13 : 18,693.18 = 3,696.96 : x
  2. Step 2: Convert to fraction form
    12,462.13/18,693.18 = 3,696.96/x
  3. Step 3: Cross multiply
    12,462.13x = 18,693.18 × 3,696.96
  4. Step 4: Simplify right side
    12,462.13x = 69,107,994.71
  5. Step 5: Solve for x
    x = 69,107,994.71/12,462.13
  6. Step 6: Final answer
    x = 5,545.44

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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.