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Finding the Fourth Proportional to 14,670.22, 21,971.44 and 8,813.92

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Solution

The fourth proportional to 14,670.22, 21,971.44 and 8,813.92 is: 13,200.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,670.22 : 21,971.44 = 8,813.92 : x
  2. Step 2: Convert to fraction form
    14,670.22/21,971.44 = 8,813.92/x
  3. Step 3: Cross multiply
    14,670.22x = 21,971.44 × 8,813.92
  4. Step 4: Simplify right side
    14,670.22x = 193,654,514.44
  5. Step 5: Solve for x
    x = 193,654,514.44/14,670.22
  6. Step 6: Final answer
    x = 13,200.52

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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.