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Finding the Fourth Proportional to 56,897.80, 78,474.58 and 36,481.82

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Solution

The fourth proportional to 56,897.80, 78,474.58 and 36,481.82 is: 50,316.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,897.80 : 78,474.58 = 36,481.82 : x
  2. Step 2: Convert to fraction form
    56,897.80/78,474.58 = 36,481.82/x
  3. Step 3: Cross multiply
    56,897.80x = 78,474.58 × 36,481.82
  4. Step 4: Simplify right side
    56,897.80x = 2,862,895,018.56
  5. Step 5: Solve for x
    x = 2,862,895,018.56/56,897.80
  6. Step 6: Final answer
    x = 50,316.45

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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.