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Finding the Fourth Proportional to 45,687.63, 68,530.73 and 14,522.43

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Solution

The fourth proportional to 45,687.63, 68,530.73 and 14,522.43 is: 21,783.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,687.63 : 68,530.73 = 14,522.43 : x
  2. Step 2: Convert to fraction form
    45,687.63/68,530.73 = 14,522.43/x
  3. Step 3: Cross multiply
    45,687.63x = 68,530.73 × 14,522.43
  4. Step 4: Simplify right side
    45,687.63x = 995,232,656.66
  5. Step 5: Solve for x
    x = 995,232,656.66/45,687.63
  6. Step 6: Final answer
    x = 21,783.42

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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.