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Finding the Fourth Proportional to 52,521.33, 72,481.19 and 28,649.33

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Solution

The fourth proportional to 52,521.33, 72,481.19 and 28,649.33 is: 39,537.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,521.33 : 72,481.19 = 28,649.33 : x
  2. Step 2: Convert to fraction form
    52,521.33/72,481.19 = 28,649.33/x
  3. Step 3: Cross multiply
    52,521.33x = 72,481.19 × 28,649.33
  4. Step 4: Simplify right side
    52,521.33x = 2,076,537,025.45
  5. Step 5: Solve for x
    x = 2,076,537,025.45/52,521.33
  6. Step 6: Final answer
    x = 39,537.02

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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.