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Finding the Fourth Proportional to 29,369.84, 40,530.42 and 15,941.09

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Solution

The fourth proportional to 29,369.84, 40,530.42 and 15,941.09 is: 21,998.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,369.84 : 40,530.42 = 15,941.09 : x
  2. Step 2: Convert to fraction form
    29,369.84/40,530.42 = 15,941.09/x
  3. Step 3: Cross multiply
    29,369.84x = 40,530.42 × 15,941.09
  4. Step 4: Simplify right side
    29,369.84x = 646,099,072.96
  5. Step 5: Solve for x
    x = 646,099,072.96/29,369.84
  6. Step 6: Final answer
    x = 21,998.73

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1.5x scale

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.