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Finding the Fourth Proportional to 21,851.48, 32,773.98 and 10,755.16

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Solution

The fourth proportional to 21,851.48, 32,773.98 and 10,755.16 is: 16,131.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,851.48 : 32,773.98 = 10,755.16 : x
  2. Step 2: Convert to fraction form
    21,851.48/32,773.98 = 10,755.16/x
  3. Step 3: Cross multiply
    21,851.48x = 32,773.98 × 10,755.16
  4. Step 4: Simplify right side
    21,851.48x = 352,489,398.74
  5. Step 5: Solve for x
    x = 352,489,398.74/21,851.48
  6. Step 6: Final answer
    x = 16,131.15

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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.