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Finding the Fourth Proportional to 9,058.56, 12,481.65 and 8,435.22

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Solution

The fourth proportional to 9,058.56, 12,481.65 and 8,435.22 is: 11,622.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,058.56 : 12,481.65 = 8,435.22 : x
  2. Step 2: Convert to fraction form
    9,058.56/12,481.65 = 8,435.22/x
  3. Step 3: Cross multiply
    9,058.56x = 12,481.65 × 8,435.22
  4. Step 4: Simplify right side
    9,058.56x = 105,285,463.71
  5. Step 5: Solve for x
    x = 105,285,463.71/9,058.56
  6. Step 6: Final answer
    x = 11,622.76

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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.