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Finding the Fourth Proportional to 14,951.44, 20,611.44 and 10,461.28

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Solution

The fourth proportional to 14,951.44, 20,611.44 and 10,461.28 is: 14,421.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,951.44 : 20,611.44 = 10,461.28 : x
  2. Step 2: Convert to fraction form
    14,951.44/20,611.44 = 10,461.28/x
  3. Step 3: Cross multiply
    14,951.44x = 20,611.44 × 10,461.28
  4. Step 4: Simplify right side
    14,951.44x = 215,622,045.04
  5. Step 5: Solve for x
    x = 215,622,045.04/14,951.44
  6. Step 6: Final answer
    x = 14,421.49

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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.