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Finding the Fourth Proportional to 36,649.76, 55,042.35 and 21,949.02

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Solution

The fourth proportional to 36,649.76, 55,042.35 and 21,949.02 is: 32,964.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,649.76 : 55,042.35 = 21,949.02 : x
  2. Step 2: Convert to fraction form
    36,649.76/55,042.35 = 21,949.02/x
  3. Step 3: Cross multiply
    36,649.76x = 55,042.35 × 21,949.02
  4. Step 4: Simplify right side
    36,649.76x = 1,208,125,725.01
  5. Step 5: Solve for x
    x = 1,208,125,725.01/36,649.76
  6. Step 6: Final answer
    x = 32,964.08

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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.