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Finding the Fourth Proportional to 21,739.41, 32,613.80 and 6,746.24

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Solution

The fourth proportional to 21,739.41, 32,613.80 and 6,746.24 is: 10,120.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,739.41 : 32,613.80 = 6,746.24 : x
  2. Step 2: Convert to fraction form
    21,739.41/32,613.80 = 6,746.24/x
  3. Step 3: Cross multiply
    21,739.41x = 32,613.80 × 6,746.24
  4. Step 4: Simplify right side
    21,739.41x = 220,020,522.11
  5. Step 5: Solve for x
    x = 220,020,522.11/21,739.41
  6. Step 6: Final answer
    x = 10,120.81

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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.