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Finding the Fourth Proportional to 4,893.89, 7,339.68 and 3,136.32

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Solution

The fourth proportional to 4,893.89, 7,339.68 and 3,136.32 is: 4,703.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,893.89 : 7,339.68 = 3,136.32 : x
  2. Step 2: Convert to fraction form
    4,893.89/7,339.68 = 3,136.32/x
  3. Step 3: Cross multiply
    4,893.89x = 7,339.68 × 3,136.32
  4. Step 4: Simplify right side
    4,893.89x = 23,019,585.18
  5. Step 5: Solve for x
    x = 23,019,585.18/4,893.89
  6. Step 6: Final answer
    x = 4,703.74

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1.5x scale

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.