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Finding the Fourth Proportional to 58,755.39, 81,082.44 and 31,897.86

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Solution

The fourth proportional to 58,755.39, 81,082.44 and 31,897.86 is: 44,019.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,755.39 : 81,082.44 = 31,897.86 : x
  2. Step 2: Convert to fraction form
    58,755.39/81,082.44 = 31,897.86/x
  3. Step 3: Cross multiply
    58,755.39x = 81,082.44 × 31,897.86
  4. Step 4: Simplify right side
    58,755.39x = 2,586,356,319.58
  5. Step 5: Solve for x
    x = 2,586,356,319.58/58,755.39
  6. Step 6: Final answer
    x = 44,019.05

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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.