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Finding the Fourth Proportional to 58,405.87, 87,599.21 and 16,288.81

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Solution

The fourth proportional to 58,405.87, 87,599.21 and 16,288.81 is: 24,430.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,405.87 : 87,599.21 = 16,288.81 : x
  2. Step 2: Convert to fraction form
    58,405.87/87,599.21 = 16,288.81/x
  3. Step 3: Cross multiply
    58,405.87x = 87,599.21 × 16,288.81
  4. Step 4: Simplify right side
    58,405.87x = 1,426,886,709.56
  5. Step 5: Solve for x
    x = 1,426,886,709.56/58,405.87
  6. Step 6: Final answer
    x = 24,430.54

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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.