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Finding the Fourth Proportional to 11,445.48, 15,789.06 and 7,246.44

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Solution

The fourth proportional to 11,445.48, 15,789.06 and 7,246.44 is: 9,996.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,445.48 : 15,789.06 = 7,246.44 : x
  2. Step 2: Convert to fraction form
    11,445.48/15,789.06 = 7,246.44/x
  3. Step 3: Cross multiply
    11,445.48x = 15,789.06 × 7,246.44
  4. Step 4: Simplify right side
    11,445.48x = 114,414,475.95
  5. Step 5: Solve for x
    x = 114,414,475.95/11,445.48
  6. Step 6: Final answer
    x = 9,996.48

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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.