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Finding the Fourth Proportional to 58,269.50, 80,412 and 33,119

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Solution

The fourth proportional to 58,269.50, 80,412 and 33,119 is: 45,704.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,269.50 : 80,412 = 33,119 : x
  2. Step 2: Convert to fraction form
    58,269.50/80,412 = 33,119/x
  3. Step 3: Cross multiply
    58,269.50x = 80,412 × 33,119
  4. Step 4: Simplify right side
    58,269.50x = 2,663,165,028
  5. Step 5: Solve for x
    x = 2,663,165,028/58,269.50
  6. Step 6: Final answer
    x = 45,704.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.