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Finding the Fourth Proportional to 18,966.51, 26,168.54 and 12,252.42

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Solution

The fourth proportional to 18,966.51, 26,168.54 and 12,252.42 is: 16,904.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,966.51 : 26,168.54 = 12,252.42 : x
  2. Step 2: Convert to fraction form
    18,966.51/26,168.54 = 12,252.42/x
  3. Step 3: Cross multiply
    18,966.51x = 26,168.54 × 12,252.42
  4. Step 4: Simplify right side
    18,966.51x = 320,627,881.60
  5. Step 5: Solve for x
    x = 320,627,881.60/18,966.51
  6. Step 6: Final answer
    x = 16,904.95

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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.