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Finding the Fourth Proportional to 58,612.60, 80,885.28 and 31,755.79

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Solution

The fourth proportional to 58,612.60, 80,885.28 and 31,755.79 is: 43,822.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,612.60 : 80,885.28 = 31,755.79 : x
  2. Step 2: Convert to fraction form
    58,612.60/80,885.28 = 31,755.79/x
  3. Step 3: Cross multiply
    58,612.60x = 80,885.28 × 31,755.79
  4. Step 4: Simplify right side
    58,612.60x = 2,568,575,965.77
  5. Step 5: Solve for x
    x = 2,568,575,965.77/58,612.60
  6. Step 6: Final answer
    x = 43,822.93

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.