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Finding the Fourth Proportional to 58,121.60, 87,120 and 23,012.48

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Solution

The fourth proportional to 58,121.60, 87,120 and 23,012.48 is: 34,494.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,121.60 : 87,120 = 23,012.48 : x
  2. Step 2: Convert to fraction form
    58,121.60/87,120 = 23,012.48/x
  3. Step 3: Cross multiply
    58,121.60x = 87,120 × 23,012.48
  4. Step 4: Simplify right side
    58,121.60x = 2,004,847,257.60
  5. Step 5: Solve for x
    x = 2,004,847,257.60/58,121.60
  6. Step 6: Final answer
    x = 34,494.01

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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.