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Finding the Fourth Proportional to 9,760.56, 13,471.56 and 6,617.76

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Solution

The fourth proportional to 9,760.56, 13,471.56 and 6,617.76 is: 9,133.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,760.56 : 13,471.56 = 6,617.76 : x
  2. Step 2: Convert to fraction form
    9,760.56/13,471.56 = 6,617.76/x
  3. Step 3: Cross multiply
    9,760.56x = 13,471.56 × 6,617.76
  4. Step 4: Simplify right side
    9,760.56x = 89,151,550.91
  5. Step 5: Solve for x
    x = 89,151,550.91/9,760.56
  6. Step 6: Final answer
    x = 9,133.86

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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.