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Finding the Fourth Proportional to 55,788.21, 83,682.27 and 14,235.21

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Solution

The fourth proportional to 55,788.21, 83,682.27 and 14,235.21 is: 21,352.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,788.21 : 83,682.27 = 14,235.21 : x
  2. Step 2: Convert to fraction form
    55,788.21/83,682.27 = 14,235.21/x
  3. Step 3: Cross multiply
    55,788.21x = 83,682.27 × 14,235.21
  4. Step 4: Simplify right side
    55,788.21x = 1,191,234,686.73
  5. Step 5: Solve for x
    x = 1,191,234,686.73/55,788.21
  6. Step 6: Final answer
    x = 21,352.80

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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.