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Finding the Fourth Proportional to 29,325.59, 43,994.53 and 12,687.99

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Solution

The fourth proportional to 29,325.59, 43,994.53 and 12,687.99 is: 19,034.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,325.59 : 43,994.53 = 12,687.99 : x
  2. Step 2: Convert to fraction form
    29,325.59/43,994.53 = 12,687.99/x
  3. Step 3: Cross multiply
    29,325.59x = 43,994.53 × 12,687.99
  4. Step 4: Simplify right side
    29,325.59x = 558,202,043.26
  5. Step 5: Solve for x
    x = 558,202,043.26/29,325.59
  6. Step 6: Final answer
    x = 19,034.64

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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.