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Finding the Fourth Proportional to 21,802.52, 30,079.91 and 12,241.07

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Solution

The fourth proportional to 21,802.52, 30,079.91 and 12,241.07 is: 16,888.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,802.52 : 30,079.91 = 12,241.07 : x
  2. Step 2: Convert to fraction form
    21,802.52/30,079.91 = 12,241.07/x
  3. Step 3: Cross multiply
    21,802.52x = 30,079.91 × 12,241.07
  4. Step 4: Simplify right side
    21,802.52x = 368,210,377.25
  5. Step 5: Solve for x
    x = 368,210,377.25/21,802.52
  6. Step 6: Final answer
    x = 16,888.43

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.