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Finding the Fourth Proportional to 10,803.62, 16,205.42 and 3,012.43

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Solution

The fourth proportional to 10,803.62, 16,205.42 and 3,012.43 is: 4,518.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,803.62 : 16,205.42 = 3,012.43 : x
  2. Step 2: Convert to fraction form
    10,803.62/16,205.42 = 3,012.43/x
  3. Step 3: Cross multiply
    10,803.62x = 16,205.42 × 3,012.43
  4. Step 4: Simplify right side
    10,803.62x = 48,817,597.28
  5. Step 5: Solve for x
    x = 48,817,597.28/10,803.62
  6. Step 6: Final answer
    x = 4,518.64

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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.