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Finding the Fourth Proportional to 7,514.85, 11,256.90 and 4,221.03

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Solution

The fourth proportional to 7,514.85, 11,256.90 and 4,221.03 is: 6,322.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,514.85 : 11,256.90 = 4,221.03 : x
  2. Step 2: Convert to fraction form
    7,514.85/11,256.90 = 4,221.03/x
  3. Step 3: Cross multiply
    7,514.85x = 11,256.90 × 4,221.03
  4. Step 4: Simplify right side
    7,514.85x = 47,515,712.61
  5. Step 5: Solve for x
    x = 47,515,712.61/7,514.85
  6. Step 6: Final answer
    x = 6,322.91

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.