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Finding the Fourth Proportional to 16,728.60, 25,064.10 and 14,136.60

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Solution

The fourth proportional to 16,728.60, 25,064.10 and 14,136.60 is: 21,180.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,728.60 : 25,064.10 = 14,136.60 : x
  2. Step 2: Convert to fraction form
    16,728.60/25,064.10 = 14,136.60/x
  3. Step 3: Cross multiply
    16,728.60x = 25,064.10 × 14,136.60
  4. Step 4: Simplify right side
    16,728.60x = 354,321,156.06
  5. Step 5: Solve for x
    x = 354,321,156.06/16,728.60
  6. Step 6: Final answer
    x = 21,180.56

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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.