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Finding the Fourth Proportional to 12,460.60, 18,693.64 and 3,694.98

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Solution

The fourth proportional to 12,460.60, 18,693.64 and 3,694.98 is: 5,543.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,460.60 : 18,693.64 = 3,694.98 : x
  2. Step 2: Convert to fraction form
    12,460.60/18,693.64 = 3,694.98/x
  3. Step 3: Cross multiply
    12,460.60x = 18,693.64 × 3,694.98
  4. Step 4: Simplify right side
    12,460.60x = 69,072,625.93
  5. Step 5: Solve for x
    x = 69,072,625.93/12,460.60
  6. Step 6: Final answer
    x = 5,543.28

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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.