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Finding the Fourth Proportional to 14,171.09, 21,256.16 and 7,610.09

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Solution

The fourth proportional to 14,171.09, 21,256.16 and 7,610.09 is: 11,414.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,171.09 : 21,256.16 = 7,610.09 : x
  2. Step 2: Convert to fraction form
    14,171.09/21,256.16 = 7,610.09/x
  3. Step 3: Cross multiply
    14,171.09x = 21,256.16 × 7,610.09
  4. Step 4: Simplify right side
    14,171.09x = 161,761,146.32
  5. Step 5: Solve for x
    x = 161,761,146.32/14,171.09
  6. Step 6: Final answer
    x = 11,414.87

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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.