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Finding the Fourth Proportional to 11,032.80, 16,543.20 and 5,473.92

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Solution

The fourth proportional to 11,032.80, 16,543.20 and 5,473.92 is: 8,207.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,032.80 : 16,543.20 = 5,473.92 : x
  2. Step 2: Convert to fraction form
    11,032.80/16,543.20 = 5,473.92/x
  3. Step 3: Cross multiply
    11,032.80x = 16,543.20 × 5,473.92
  4. Step 4: Simplify right side
    11,032.80x = 90,556,153.34
  5. Step 5: Solve for x
    x = 90,556,153.34/11,032.80
  6. Step 6: Final answer
    x = 8,207.90

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.