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Finding the Fourth Proportional to 14,028.55, 19,359.41 and 8,060.78

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Solution

The fourth proportional to 14,028.55, 19,359.41 and 8,060.78 is: 11,123.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,028.55 : 19,359.41 = 8,060.78 : x
  2. Step 2: Convert to fraction form
    14,028.55/19,359.41 = 8,060.78/x
  3. Step 3: Cross multiply
    14,028.55x = 19,359.41 × 8,060.78
  4. Step 4: Simplify right side
    14,028.55x = 156,051,944.94
  5. Step 5: Solve for x
    x = 156,051,944.94/14,028.55
  6. Step 6: Final answer
    x = 11,123.88

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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.