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Finding the Fourth Proportional to 58,455.86, 87,657.87 and 40,933.94

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Solution

The fourth proportional to 58,455.86, 87,657.87 and 40,933.94 is: 61,382.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,455.86 : 87,657.87 = 40,933.94 : x
  2. Step 2: Convert to fraction form
    58,455.86/87,657.87 = 40,933.94/x
  3. Step 3: Cross multiply
    58,455.86x = 87,657.87 × 40,933.94
  4. Step 4: Simplify right side
    58,455.86x = 3,588,181,991.11
  5. Step 5: Solve for x
    x = 3,588,181,991.11/58,455.86
  6. Step 6: Final answer
    x = 61,382.76

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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.