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Finding the Fourth Proportional to 19,407.68, 29,136.12 and 16,160.48

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Solution

The fourth proportional to 19,407.68, 29,136.12 and 16,160.48 is: 24,261.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,407.68 : 29,136.12 = 16,160.48 : x
  2. Step 2: Convert to fraction form
    19,407.68/29,136.12 = 16,160.48/x
  3. Step 3: Cross multiply
    19,407.68x = 29,136.12 × 16,160.48
  4. Step 4: Simplify right side
    19,407.68x = 470,853,684.54
  5. Step 5: Solve for x
    x = 470,853,684.54/19,407.68
  6. Step 6: Final answer
    x = 24,261.20

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.