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Finding the Fourth Proportional to 14,295.56, 19,728.78 and 8,008.88

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Solution

The fourth proportional to 14,295.56, 19,728.78 and 8,008.88 is: 11,052.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,295.56 : 19,728.78 = 8,008.88 : x
  2. Step 2: Convert to fraction form
    14,295.56/19,728.78 = 8,008.88/x
  3. Step 3: Cross multiply
    14,295.56x = 19,728.78 × 8,008.88
  4. Step 4: Simplify right side
    14,295.56x = 158,005,431.57
  5. Step 5: Solve for x
    x = 158,005,431.57/14,295.56
  6. Step 6: Final answer
    x = 11,052.76

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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.