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Finding the Fourth Proportional to 19,660.27, 27,130.95 and 10,707.74

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Solution

The fourth proportional to 19,660.27, 27,130.95 and 10,707.74 is: 14,776.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,660.27 : 27,130.95 = 10,707.74 : x
  2. Step 2: Convert to fraction form
    19,660.27/27,130.95 = 10,707.74/x
  3. Step 3: Cross multiply
    19,660.27x = 27,130.95 × 10,707.74
  4. Step 4: Simplify right side
    19,660.27x = 290,511,277.25
  5. Step 5: Solve for x
    x = 290,511,277.25/19,660.27
  6. Step 6: Final answer
    x = 14,776.57

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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.