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Finding the Fourth Proportional to 59,985.75, 82,780.34 and 34,836.87

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Solution

The fourth proportional to 59,985.75, 82,780.34 and 34,836.87 is: 48,074.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,985.75 : 82,780.34 = 34,836.87 : x
  2. Step 2: Convert to fraction form
    59,985.75/82,780.34 = 34,836.87/x
  3. Step 3: Cross multiply
    59,985.75x = 82,780.34 × 34,836.87
  4. Step 4: Simplify right side
    59,985.75x = 2,883,807,768.95
  5. Step 5: Solve for x
    x = 2,883,807,768.95/59,985.75
  6. Step 6: Final answer
    x = 48,074.88

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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.