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Finding the Fourth Proportional to 7,654.77, 11,472.37 and 6,663.53

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Solution

The fourth proportional to 7,654.77, 11,472.37 and 6,663.53 is: 9,986.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,654.77 : 11,472.37 = 6,663.53 : x
  2. Step 2: Convert to fraction form
    7,654.77/11,472.37 = 6,663.53/x
  3. Step 3: Cross multiply
    7,654.77x = 11,472.37 × 6,663.53
  4. Step 4: Simplify right side
    7,654.77x = 76,446,493.69
  5. Step 5: Solve for x
    x = 76,446,493.69/7,654.77
  6. Step 6: Final answer
    x = 9,986.78

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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.