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Finding the Fourth Proportional to 48,443, 72,668.94 and 16,858.68

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Solution

The fourth proportional to 48,443, 72,668.94 and 16,858.68 is: 25,289.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,443 : 72,668.94 = 16,858.68 : x
  2. Step 2: Convert to fraction form
    48,443/72,668.94 = 16,858.68/x
  3. Step 3: Cross multiply
    48,443x = 72,668.94 × 16,858.68
  4. Step 4: Simplify right side
    48,443x = 1,225,102,405.40
  5. Step 5: Solve for x
    x = 1,225,102,405.40/48,443
  6. Step 6: Final answer
    x = 25,289.57

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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.