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Finding the Fourth Proportional to 29,390.40, 44,042.40 and 11,829.60

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Solution

The fourth proportional to 29,390.40, 44,042.40 and 11,829.60 is: 17,727.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,390.40 : 44,042.40 = 11,829.60 : x
  2. Step 2: Convert to fraction form
    29,390.40/44,042.40 = 11,829.60/x
  3. Step 3: Cross multiply
    29,390.40x = 44,042.40 × 11,829.60
  4. Step 4: Simplify right side
    29,390.40x = 521,003,975.04
  5. Step 5: Solve for x
    x = 521,003,975.04/29,390.40
  6. Step 6: Final answer
    x = 17,727.01

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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.