Home / 16,947.28-25,420.65-6,949.90

Finding the Fourth Proportional to 16,947.28, 25,420.65 and 6,949.90

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Solution

The fourth proportional to 16,947.28, 25,420.65 and 6,949.90 is: 10,424.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,947.28 : 25,420.65 = 6,949.90 : x
  2. Step 2: Convert to fraction form
    16,947.28/25,420.65 = 6,949.90/x
  3. Step 3: Cross multiply
    16,947.28x = 25,420.65 × 6,949.90
  4. Step 4: Simplify right side
    16,947.28x = 176,670,975.44
  5. Step 5: Solve for x
    x = 176,670,975.44/16,947.28
  6. Step 6: Final answer
    x = 10,424.74

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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.