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Finding the Fourth Proportional to 21,565.72, 32,348.76 and 5,984.56

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Solution

The fourth proportional to 21,565.72, 32,348.76 and 5,984.56 is: 8,976.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,565.72 : 32,348.76 = 5,984.56 : x
  2. Step 2: Convert to fraction form
    21,565.72/32,348.76 = 5,984.56/x
  3. Step 3: Cross multiply
    21,565.72x = 32,348.76 × 5,984.56
  4. Step 4: Simplify right side
    21,565.72x = 193,593,095.15
  5. Step 5: Solve for x
    x = 193,593,095.15/21,565.72
  6. Step 6: Final answer
    x = 8,976.89

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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.