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Finding the Fourth Proportional to 16,392.16, 22,640 and 11,935.76

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Solution

The fourth proportional to 16,392.16, 22,640 and 11,935.76 is: 16,485.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,392.16 : 22,640 = 11,935.76 : x
  2. Step 2: Convert to fraction form
    16,392.16/22,640 = 11,935.76/x
  3. Step 3: Cross multiply
    16,392.16x = 22,640 × 11,935.76
  4. Step 4: Simplify right side
    16,392.16x = 270,225,606.40
  5. Step 5: Solve for x
    x = 270,225,606.40/16,392.16
  6. Step 6: Final answer
    x = 16,485.05

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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.