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Finding the Fourth Proportional to 14,995.68, 20,702.88 and 10,286.88

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Solution

The fourth proportional to 14,995.68, 20,702.88 and 10,286.88 is: 14,201.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,995.68 : 20,702.88 = 10,286.88 : x
  2. Step 2: Convert to fraction form
    14,995.68/20,702.88 = 10,286.88/x
  3. Step 3: Cross multiply
    14,995.68x = 20,702.88 × 10,286.88
  4. Step 4: Simplify right side
    14,995.68x = 212,968,042.21
  5. Step 5: Solve for x
    x = 212,968,042.21/14,995.68
  6. Step 6: Final answer
    x = 14,201.96

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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.