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Finding the Fourth Proportional to 19,651.64, 27,119.93 and 10,699.28

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Solution

The fourth proportional to 19,651.64, 27,119.93 and 10,699.28 is: 14,765.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,651.64 : 27,119.93 = 10,699.28 : x
  2. Step 2: Convert to fraction form
    19,651.64/27,119.93 = 10,699.28/x
  3. Step 3: Cross multiply
    19,651.64x = 27,119.93 × 10,699.28
  4. Step 4: Simplify right side
    19,651.64x = 290,163,535.55
  5. Step 5: Solve for x
    x = 290,163,535.55/19,651.64
  6. Step 6: Final answer
    x = 14,765.36

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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.