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Finding the Fourth Proportional to 7,796.67, 11,622.81 and 7,676.79

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Solution

The fourth proportional to 7,796.67, 11,622.81 and 7,676.79 is: 11,444.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,796.67 : 11,622.81 = 7,676.79 : x
  2. Step 2: Convert to fraction form
    7,796.67/11,622.81 = 7,676.79/x
  3. Step 3: Cross multiply
    7,796.67x = 11,622.81 × 7,676.79
  4. Step 4: Simplify right side
    7,796.67x = 89,225,871.58
  5. Step 5: Solve for x
    x = 89,225,871.58/7,796.67
  6. Step 6: Final answer
    x = 11,444.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.