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Finding the Fourth Proportional to 58,310.96, 87,491.03 and 28,729.04

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Solution

The fourth proportional to 58,310.96, 87,491.03 and 28,729.04 is: 43,105.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,310.96 : 87,491.03 = 28,729.04 : x
  2. Step 2: Convert to fraction form
    58,310.96/87,491.03 = 28,729.04/x
  3. Step 3: Cross multiply
    58,310.96x = 87,491.03 × 28,729.04
  4. Step 4: Simplify right side
    58,310.96x = 2,513,532,719.41
  5. Step 5: Solve for x
    x = 2,513,532,719.41/58,310.96
  6. Step 6: Final answer
    x = 43,105.67

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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.