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Finding the Fourth Proportional to 58,267.20, 80,388 and 34,381.92

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Solution

The fourth proportional to 58,267.20, 80,388 and 34,381.92 is: 47,434.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,267.20 : 80,388 = 34,381.92 : x
  2. Step 2: Convert to fraction form
    58,267.20/80,388 = 34,381.92/x
  3. Step 3: Cross multiply
    58,267.20x = 80,388 × 34,381.92
  4. Step 4: Simplify right side
    58,267.20x = 2,763,893,784.96
  5. Step 5: Solve for x
    x = 2,763,893,784.96/58,267.20
  6. Step 6: Final answer
    x = 47,434.81

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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.