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Finding the Fourth Proportional to 29,985.68, 41,396.64 and 18,051.68

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Solution

The fourth proportional to 29,985.68, 41,396.64 and 18,051.68 is: 24,921.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,985.68 : 41,396.64 = 18,051.68 : x
  2. Step 2: Convert to fraction form
    29,985.68/41,396.64 = 18,051.68/x
  3. Step 3: Cross multiply
    29,985.68x = 41,396.64 × 18,051.68
  4. Step 4: Simplify right side
    29,985.68x = 747,278,898.36
  5. Step 5: Solve for x
    x = 747,278,898.36/29,985.68
  6. Step 6: Final answer
    x = 24,921.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.