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Finding the Fourth Proportional to 10,761.68, 16,145.12 and 3,740.68

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Solution

The fourth proportional to 10,761.68, 16,145.12 and 3,740.68 is: 5,611.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,761.68 : 16,145.12 = 3,740.68 : x
  2. Step 2: Convert to fraction form
    10,761.68/16,145.12 = 3,740.68/x
  3. Step 3: Cross multiply
    10,761.68x = 16,145.12 × 3,740.68
  4. Step 4: Simplify right side
    10,761.68x = 60,393,696.47
  5. Step 5: Solve for x
    x = 60,393,696.47/10,761.68
  6. Step 6: Final answer
    x = 5,611.92

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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.