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Finding the Fourth Proportional to 57,985.50, 86,992.83 and 16,432.50

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Solution

The fourth proportional to 57,985.50, 86,992.83 and 16,432.50 is: 24,652.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,985.50 : 86,992.83 = 16,432.50 : x
  2. Step 2: Convert to fraction form
    57,985.50/86,992.83 = 16,432.50/x
  3. Step 3: Cross multiply
    57,985.50x = 86,992.83 × 16,432.50
  4. Step 4: Simplify right side
    57,985.50x = 1,429,509,678.98
  5. Step 5: Solve for x
    x = 1,429,509,678.98/57,985.50
  6. Step 6: Final answer
    x = 24,652.88

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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.