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Finding the Fourth Proportional to 11,768.88, 16,234.92 and 7,291.20

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Solution

The fourth proportional to 11,768.88, 16,234.92 and 7,291.20 is: 10,058.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,768.88 : 16,234.92 = 7,291.20 : x
  2. Step 2: Convert to fraction form
    11,768.88/16,234.92 = 7,291.20/x
  3. Step 3: Cross multiply
    11,768.88x = 16,234.92 × 7,291.20
  4. Step 4: Simplify right side
    11,768.88x = 118,372,048.70
  5. Step 5: Solve for x
    x = 118,372,048.70/11,768.88
  6. Step 6: Final answer
    x = 10,058.06

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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.