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Finding the Fourth Proportional to 16,640.72, 24,947.80 and 9,612.72

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Solution

The fourth proportional to 16,640.72, 24,947.80 and 9,612.72 is: 14,411.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,640.72 : 24,947.80 = 9,612.72 : x
  2. Step 2: Convert to fraction form
    16,640.72/24,947.80 = 9,612.72/x
  3. Step 3: Cross multiply
    16,640.72x = 24,947.80 × 9,612.72
  4. Step 4: Simplify right side
    16,640.72x = 239,816,216.02
  5. Step 5: Solve for x
    x = 239,816,216.02/16,640.72
  6. Step 6: Final answer
    x = 14,411.41

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1.5x scale

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.