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Finding the Fourth Proportional to 18,596.45, 27,866.99 and 10,278.86

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Solution

The fourth proportional to 18,596.45, 27,866.99 and 10,278.86 is: 15,402.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,596.45 : 27,866.99 = 10,278.86 : x
  2. Step 2: Convert to fraction form
    18,596.45/27,866.99 = 10,278.86/x
  3. Step 3: Cross multiply
    18,596.45x = 27,866.99 × 10,278.86
  4. Step 4: Simplify right side
    18,596.45x = 286,440,837.44
  5. Step 5: Solve for x
    x = 286,440,837.44/18,596.45
  6. Step 6: Final answer
    x = 15,402.98

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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.