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Finding the Fourth Proportional to 30,551.28, 45,811.92 and 10,827

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Solution

The fourth proportional to 30,551.28, 45,811.92 and 10,827 is: 16,235.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,551.28 : 45,811.92 = 10,827 : x
  2. Step 2: Convert to fraction form
    30,551.28/45,811.92 = 10,827/x
  3. Step 3: Cross multiply
    30,551.28x = 45,811.92 × 10,827
  4. Step 4: Simplify right side
    30,551.28x = 496,005,657.84
  5. Step 5: Solve for x
    x = 496,005,657.84/30,551.28
  6. Step 6: Final answer
    x = 16,235.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.