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Finding the Fourth Proportional to 13,133.92, 18,127.92 and 7,548.16

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Solution

The fourth proportional to 13,133.92, 18,127.92 and 7,548.16 is: 10,418.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,133.92 : 18,127.92 = 7,548.16 : x
  2. Step 2: Convert to fraction form
    13,133.92/18,127.92 = 7,548.16/x
  3. Step 3: Cross multiply
    13,133.92x = 18,127.92 × 7,548.16
  4. Step 4: Simplify right side
    13,133.92x = 136,832,440.63
  5. Step 5: Solve for x
    x = 136,832,440.63/13,133.92
  6. Step 6: Final answer
    x = 10,418.25

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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.