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Finding the Fourth Proportional to 58,354.41, 87,539.72 and 18,898.77

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Solution

The fourth proportional to 58,354.41, 87,539.72 and 18,898.77 is: 28,350.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,354.41 : 87,539.72 = 18,898.77 : x
  2. Step 2: Convert to fraction form
    58,354.41/87,539.72 = 18,898.77/x
  3. Step 3: Cross multiply
    58,354.41x = 87,539.72 × 18,898.77
  4. Step 4: Simplify right side
    58,354.41x = 1,654,392,939.65
  5. Step 5: Solve for x
    x = 1,654,392,939.65/58,354.41
  6. Step 6: Final answer
    x = 28,350.78

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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.