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Finding the Fourth Proportional to 21,883.41, 30,199.08 and 12,934.14

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Solution

The fourth proportional to 21,883.41, 30,199.08 and 12,934.14 is: 17,849.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,883.41 : 30,199.08 = 12,934.14 : x
  2. Step 2: Convert to fraction form
    21,883.41/30,199.08 = 12,934.14/x
  3. Step 3: Cross multiply
    21,883.41x = 30,199.08 × 12,934.14
  4. Step 4: Simplify right side
    21,883.41x = 390,599,128.59
  5. Step 5: Solve for x
    x = 390,599,128.59/21,883.41
  6. Step 6: Final answer
    x = 17,849.10

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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.