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Finding the Fourth Proportional to 11,643.32, 17,452.82 and 4,621.44

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Solution

The fourth proportional to 11,643.32, 17,452.82 and 4,621.44 is: 6,927.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,643.32 : 17,452.82 = 4,621.44 : x
  2. Step 2: Convert to fraction form
    11,643.32/17,452.82 = 4,621.44/x
  3. Step 3: Cross multiply
    11,643.32x = 17,452.82 × 4,621.44
  4. Step 4: Simplify right side
    11,643.32x = 80,657,160.46
  5. Step 5: Solve for x
    x = 80,657,160.46/11,643.32
  6. Step 6: Final answer
    x = 6,927.33

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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.