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Finding the Fourth Proportional to 13,041.12, 17,992.08 and 7,448.88

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Solution

The fourth proportional to 13,041.12, 17,992.08 and 7,448.88 is: 10,276.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,041.12 : 17,992.08 = 7,448.88 : x
  2. Step 2: Convert to fraction form
    13,041.12/17,992.08 = 7,448.88/x
  3. Step 3: Cross multiply
    13,041.12x = 17,992.08 × 7,448.88
  4. Step 4: Simplify right side
    13,041.12x = 134,020,844.87
  5. Step 5: Solve for x
    x = 134,020,844.87/13,041.12
  6. Step 6: Final answer
    x = 10,276.79

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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.