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Finding the Fourth Proportional to 21,761.60, 32,604.60 and 10,050.80

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Solution

The fourth proportional to 21,761.60, 32,604.60 and 10,050.80 is: 15,058.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,761.60 : 32,604.60 = 10,050.80 : x
  2. Step 2: Convert to fraction form
    21,761.60/32,604.60 = 10,050.80/x
  3. Step 3: Cross multiply
    21,761.60x = 32,604.60 × 10,050.80
  4. Step 4: Simplify right side
    21,761.60x = 327,702,313.68
  5. Step 5: Solve for x
    x = 327,702,313.68/21,761.60
  6. Step 6: Final answer
    x = 15,058.74

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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.