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Finding the Fourth Proportional to 45,659.80, 68,495.17 and 19,361.13

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Solution

The fourth proportional to 45,659.80, 68,495.17 and 19,361.13 is: 29,044.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,659.80 : 68,495.17 = 19,361.13 : x
  2. Step 2: Convert to fraction form
    45,659.80/68,495.17 = 19,361.13/x
  3. Step 3: Cross multiply
    45,659.80x = 68,495.17 × 19,361.13
  4. Step 4: Simplify right side
    45,659.80x = 1,326,143,890.74
  5. Step 5: Solve for x
    x = 1,326,143,890.74/45,659.80
  6. Step 6: Final answer
    x = 29,044.01

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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.