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Finding the Fourth Proportional to 8,661.92, 11,953.45 and 4,683.06

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Solution

The fourth proportional to 8,661.92, 11,953.45 and 4,683.06 is: 6,462.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,661.92 : 11,953.45 = 4,683.06 : x
  2. Step 2: Convert to fraction form
    8,661.92/11,953.45 = 4,683.06/x
  3. Step 3: Cross multiply
    8,661.92x = 11,953.45 × 4,683.06
  4. Step 4: Simplify right side
    8,661.92x = 55,978,711.85
  5. Step 5: Solve for x
    x = 55,978,711.85/8,661.92
  6. Step 6: Final answer
    x = 6,462.63

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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.