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Finding the Fourth Proportional to 27,563.28, 38,035.80 and 14,987.92

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Solution

The fourth proportional to 27,563.28, 38,035.80 and 14,987.92 is: 20,682.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,563.28 : 38,035.80 = 14,987.92 : x
  2. Step 2: Convert to fraction form
    27,563.28/38,035.80 = 14,987.92/x
  3. Step 3: Cross multiply
    27,563.28x = 38,035.80 × 14,987.92
  4. Step 4: Simplify right side
    27,563.28x = 570,077,527.54
  5. Step 5: Solve for x
    x = 570,077,527.54/27,563.28
  6. Step 6: Final answer
    x = 20,682.50

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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.