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Finding the Fourth Proportional to 55,206.60, 82,779.66 and 21,892.92

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Solution

The fourth proportional to 55,206.60, 82,779.66 and 21,892.92 is: 32,827.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,206.60 : 82,779.66 = 21,892.92 : x
  2. Step 2: Convert to fraction form
    55,206.60/82,779.66 = 21,892.92/x
  3. Step 3: Cross multiply
    55,206.60x = 82,779.66 × 21,892.92
  4. Step 4: Simplify right side
    55,206.60x = 1,812,288,474.01
  5. Step 5: Solve for x
    x = 1,812,288,474.01/55,206.60
  6. Step 6: Final answer
    x = 32,827.39

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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.