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Finding the Fourth Proportional to 37,482.98, 51,726.38 and 20,487.22

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Solution

The fourth proportional to 37,482.98, 51,726.38 and 20,487.22 is: 28,272.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,482.98 : 51,726.38 = 20,487.22 : x
  2. Step 2: Convert to fraction form
    37,482.98/51,726.38 = 20,487.22/x
  3. Step 3: Cross multiply
    37,482.98x = 51,726.38 × 20,487.22
  4. Step 4: Simplify right side
    37,482.98x = 1,059,729,726.86
  5. Step 5: Solve for x
    x = 1,059,729,726.86/37,482.98
  6. Step 6: Final answer
    x = 28,272.29

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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.