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Finding the Fourth Proportional to 8,661.77, 11,950.41 and 5,301.08

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Solution

The fourth proportional to 8,661.77, 11,950.41 and 5,301.08 is: 7,313.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,661.77 : 11,950.41 = 5,301.08 : x
  2. Step 2: Convert to fraction form
    8,661.77/11,950.41 = 5,301.08/x
  3. Step 3: Cross multiply
    8,661.77x = 11,950.41 × 5,301.08
  4. Step 4: Simplify right side
    8,661.77x = 63,350,079.44
  5. Step 5: Solve for x
    x = 63,350,079.44/8,661.77
  6. Step 6: Final answer
    x = 7,313.76

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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.