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Finding the Fourth Proportional to 8,601.47, 11,867.22 and 5,015.62

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Solution

The fourth proportional to 8,601.47, 11,867.22 and 5,015.62 is: 6,919.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,601.47 : 11,867.22 = 5,015.62 : x
  2. Step 2: Convert to fraction form
    8,601.47/11,867.22 = 5,015.62/x
  3. Step 3: Cross multiply
    8,601.47x = 11,867.22 × 5,015.62
  4. Step 4: Simplify right side
    8,601.47x = 59,521,419.18
  5. Step 5: Solve for x
    x = 59,521,419.18/8,601.47
  6. Step 6: Final answer
    x = 6,919.91

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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.