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Finding the Fourth Proportional to 21,580.53, 32,370.86 and 5,998.15

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Solution

The fourth proportional to 21,580.53, 32,370.86 and 5,998.15 is: 8,997.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,580.53 : 32,370.86 = 5,998.15 : x
  2. Step 2: Convert to fraction form
    21,580.53/32,370.86 = 5,998.15/x
  3. Step 3: Cross multiply
    21,580.53x = 32,370.86 × 5,998.15
  4. Step 4: Simplify right side
    21,580.53x = 194,165,273.91
  5. Step 5: Solve for x
    x = 194,165,273.91/21,580.53
  6. Step 6: Final answer
    x = 8,997.24

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Similar ratio
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1.5x scale

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.