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Finding the Fourth Proportional to 18,796.58, 25,927.88 and 12,423.24

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Solution

The fourth proportional to 18,796.58, 25,927.88 and 12,423.24 is: 17,136.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,796.58 : 25,927.88 = 12,423.24 : x
  2. Step 2: Convert to fraction form
    18,796.58/25,927.88 = 12,423.24/x
  3. Step 3: Cross multiply
    18,796.58x = 25,927.88 × 12,423.24
  4. Step 4: Simplify right side
    18,796.58x = 322,108,275.93
  5. Step 5: Solve for x
    x = 322,108,275.93/18,796.58
  6. Step 6: Final answer
    x = 17,136.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.