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Finding the Fourth Proportional to 11,514.70, 15,890.22 and 6,546.70

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Solution

The fourth proportional to 11,514.70, 15,890.22 and 6,546.70 is: 9,034.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,514.70 : 15,890.22 = 6,546.70 : x
  2. Step 2: Convert to fraction form
    11,514.70/15,890.22 = 6,546.70/x
  3. Step 3: Cross multiply
    11,514.70x = 15,890.22 × 6,546.70
  4. Step 4: Simplify right side
    11,514.70x = 104,028,503.27
  5. Step 5: Solve for x
    x = 104,028,503.27/11,514.70
  6. Step 6: Final answer
    x = 9,034.41

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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.