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Finding the Fourth Proportional to 16,821.20, 25,210.20 and 14,963.60

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Solution

The fourth proportional to 16,821.20, 25,210.20 and 14,963.60 is: 22,426.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,821.20 : 25,210.20 = 14,963.60 : x
  2. Step 2: Convert to fraction form
    16,821.20/25,210.20 = 14,963.60/x
  3. Step 3: Cross multiply
    16,821.20x = 25,210.20 × 14,963.60
  4. Step 4: Simplify right side
    16,821.20x = 377,235,348.72
  5. Step 5: Solve for x
    x = 377,235,348.72/16,821.20
  6. Step 6: Final answer
    x = 22,426.19

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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.