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Finding the Fourth Proportional to 45,646.63, 68,480.88 and 14,481.88

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Solution

The fourth proportional to 45,646.63, 68,480.88 and 14,481.88 is: 21,726.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,646.63 : 68,480.88 = 14,481.88 : x
  2. Step 2: Convert to fraction form
    45,646.63/68,480.88 = 14,481.88/x
  3. Step 3: Cross multiply
    45,646.63x = 68,480.88 × 14,481.88
  4. Step 4: Simplify right side
    45,646.63x = 991,731,471.64
  5. Step 5: Solve for x
    x = 991,731,471.64/45,646.63
  6. Step 6: Final answer
    x = 21,726.28

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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.