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Finding the Fourth Proportional to 36,759.84, 55,070.20 and 21,721.98

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Solution

The fourth proportional to 36,759.84, 55,070.20 and 21,721.98 is: 32,541.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,759.84 : 55,070.20 = 21,721.98 : x
  2. Step 2: Convert to fraction form
    36,759.84/55,070.20 = 21,721.98/x
  3. Step 3: Cross multiply
    36,759.84x = 55,070.20 × 21,721.98
  4. Step 4: Simplify right side
    36,759.84x = 1,196,233,783.00
  5. Step 5: Solve for x
    x = 1,196,233,783.00/36,759.84
  6. Step 6: Final answer
    x = 32,541.87

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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.