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Finding the Fourth Proportional to 4,611.33, 6,916.94 and 1,689.61

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Solution

The fourth proportional to 4,611.33, 6,916.94 and 1,689.61 is: 2,534.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,611.33 : 6,916.94 = 1,689.61 : x
  2. Step 2: Convert to fraction form
    4,611.33/6,916.94 = 1,689.61/x
  3. Step 3: Cross multiply
    4,611.33x = 6,916.94 × 1,689.61
  4. Step 4: Simplify right side
    4,611.33x = 11,686,934.06
  5. Step 5: Solve for x
    x = 11,686,934.06/4,611.33
  6. Step 6: Final answer
    x = 2,534.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.