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Finding the Fourth Proportional to 7,588.65, 11,385.21 and 3,893.49

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Solution

The fourth proportional to 7,588.65, 11,385.21 and 3,893.49 is: 5,841.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,588.65 : 11,385.21 = 3,893.49 : x
  2. Step 2: Convert to fraction form
    7,588.65/11,385.21 = 3,893.49/x
  3. Step 3: Cross multiply
    7,588.65x = 11,385.21 × 3,893.49
  4. Step 4: Simplify right side
    7,588.65x = 44,328,201.28
  5. Step 5: Solve for x
    x = 44,328,201.28/7,588.65
  6. Step 6: Final answer
    x = 5,841.38

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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.