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Finding the Fourth Proportional to 8,599.32, 11,872.80 and 6,606.32

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Solution

The fourth proportional to 8,599.32, 11,872.80 and 6,606.32 is: 9,121.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,599.32 : 11,872.80 = 6,606.32 : x
  2. Step 2: Convert to fraction form
    8,599.32/11,872.80 = 6,606.32/x
  3. Step 3: Cross multiply
    8,599.32x = 11,872.80 × 6,606.32
  4. Step 4: Simplify right side
    8,599.32x = 78,435,516.10
  5. Step 5: Solve for x
    x = 78,435,516.10/8,599.32
  6. Step 6: Final answer
    x = 9,121.13

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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.