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Finding the Fourth Proportional to 37,314.48, 55,913.40 and 21,529.20

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Solution

The fourth proportional to 37,314.48, 55,913.40 and 21,529.20 is: 32,260.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,314.48 : 55,913.40 = 21,529.20 : x
  2. Step 2: Convert to fraction form
    37,314.48/55,913.40 = 21,529.20/x
  3. Step 3: Cross multiply
    37,314.48x = 55,913.40 × 21,529.20
  4. Step 4: Simplify right side
    37,314.48x = 1,203,770,771.28
  5. Step 5: Solve for x
    x = 1,203,770,771.28/37,314.48
  6. Step 6: Final answer
    x = 32,260.15

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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.