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Finding the Fourth Proportional to 58,091.80, 87,135.88 and 16,538.80

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Solution

The fourth proportional to 58,091.80, 87,135.88 and 16,538.80 is: 24,807.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,091.80 : 87,135.88 = 16,538.80 : x
  2. Step 2: Convert to fraction form
    58,091.80/87,135.88 = 16,538.80/x
  3. Step 3: Cross multiply
    58,091.80x = 87,135.88 × 16,538.80
  4. Step 4: Simplify right side
    58,091.80x = 1,441,122,892.14
  5. Step 5: Solve for x
    x = 1,441,122,892.14/58,091.80
  6. Step 6: Final answer
    x = 24,807.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.