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Finding the Fourth Proportional to 19,851.84, 27,393.60 and 11,468.16

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Solution

The fourth proportional to 19,851.84, 27,393.60 and 11,468.16 is: 15,824.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,851.84 : 27,393.60 = 11,468.16 : x
  2. Step 2: Convert to fraction form
    19,851.84/27,393.60 = 11,468.16/x
  3. Step 3: Cross multiply
    19,851.84x = 27,393.60 × 11,468.16
  4. Step 4: Simplify right side
    19,851.84x = 314,154,187.78
  5. Step 5: Solve for x
    x = 314,154,187.78/19,851.84
  6. Step 6: Final answer
    x = 15,824.94

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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.