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Finding the Fourth Proportional to 12,460.92, 18,695.28 and 3,695.88

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Solution

The fourth proportional to 12,460.92, 18,695.28 and 3,695.88 is: 5,544.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,460.92 : 18,695.28 = 3,695.88 : x
  2. Step 2: Convert to fraction form
    12,460.92/18,695.28 = 3,695.88/x
  3. Step 3: Cross multiply
    12,460.92x = 18,695.28 × 3,695.88
  4. Step 4: Simplify right side
    12,460.92x = 69,095,511.45
  5. Step 5: Solve for x
    x = 69,095,511.45/12,460.92
  6. Step 6: Final answer
    x = 5,544.98

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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.