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Finding the Fourth Proportional to 8,661.92, 11,953.52 and 4,683.11

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Solution

The fourth proportional to 8,661.92, 11,953.52 and 4,683.11 is: 6,462.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,661.92 : 11,953.52 = 4,683.11 : x
  2. Step 2: Convert to fraction form
    8,661.92/11,953.52 = 4,683.11/x
  3. Step 3: Cross multiply
    8,661.92x = 11,953.52 × 4,683.11
  4. Step 4: Simplify right side
    8,661.92x = 55,979,565.86
  5. Step 5: Solve for x
    x = 55,979,565.86/8,661.92
  6. Step 6: Final answer
    x = 6,462.72

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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.