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Finding the Fourth Proportional to 6,893.88, 9,516.78 and 4,411.32

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Solution

The fourth proportional to 6,893.88, 9,516.78 and 4,411.32 is: 6,089.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,893.88 : 9,516.78 = 4,411.32 : x
  2. Step 2: Convert to fraction form
    6,893.88/9,516.78 = 4,411.32/x
  3. Step 3: Cross multiply
    6,893.88x = 9,516.78 × 4,411.32
  4. Step 4: Simplify right side
    6,893.88x = 41,981,561.95
  5. Step 5: Solve for x
    x = 41,981,561.95/6,893.88
  6. Step 6: Final answer
    x = 6,089.69

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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.