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Finding the Fourth Proportional to 11,083.56, 16,621.04 and 4,328.32

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Solution

The fourth proportional to 11,083.56, 16,621.04 and 4,328.32 is: 6,490.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,083.56 : 16,621.04 = 4,328.32 : x
  2. Step 2: Convert to fraction form
    11,083.56/16,621.04 = 4,328.32/x
  3. Step 3: Cross multiply
    11,083.56x = 16,621.04 × 4,328.32
  4. Step 4: Simplify right side
    11,083.56x = 71,941,179.85
  5. Step 5: Solve for x
    x = 71,941,179.85/11,083.56
  6. Step 6: Final answer
    x = 6,490.80

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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.