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Finding the Fourth Proportional to 52,203.72, 72,040.95 and 29,540.49

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Solution

The fourth proportional to 52,203.72, 72,040.95 and 29,540.49 is: 40,765.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,203.72 : 72,040.95 = 29,540.49 : x
  2. Step 2: Convert to fraction form
    52,203.72/72,040.95 = 29,540.49/x
  3. Step 3: Cross multiply
    52,203.72x = 72,040.95 × 29,540.49
  4. Step 4: Simplify right side
    52,203.72x = 2,128,124,963.07
  5. Step 5: Solve for x
    x = 2,128,124,963.07/52,203.72
  6. Step 6: Final answer
    x = 40,765.77

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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.