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Finding the Fourth Proportional to 18,596.56, 25,653.74 and 11,875.12

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Solution

The fourth proportional to 18,596.56, 25,653.74 and 11,875.12 is: 16,381.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,596.56 : 25,653.74 = 11,875.12 : x
  2. Step 2: Convert to fraction form
    18,596.56/25,653.74 = 11,875.12/x
  3. Step 3: Cross multiply
    18,596.56x = 25,653.74 × 11,875.12
  4. Step 4: Simplify right side
    18,596.56x = 304,641,240.95
  5. Step 5: Solve for x
    x = 304,641,240.95/18,596.56
  6. Step 6: Final answer
    x = 16,381.59

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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.