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Finding the Fourth Proportional to 21,477.59, 29,639.02 and 12,046.36

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Solution

The fourth proportional to 21,477.59, 29,639.02 and 12,046.36 is: 16,623.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,477.59 : 29,639.02 = 12,046.36 : x
  2. Step 2: Convert to fraction form
    21,477.59/29,639.02 = 12,046.36/x
  3. Step 3: Cross multiply
    21,477.59x = 29,639.02 × 12,046.36
  4. Step 4: Simplify right side
    21,477.59x = 357,042,304.97
  5. Step 5: Solve for x
    x = 357,042,304.97/21,477.59
  6. Step 6: Final answer
    x = 16,623.95

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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.