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Finding the Fourth Proportional to 3,602.12, 5,404.18 and 1,136.88

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Solution

The fourth proportional to 3,602.12, 5,404.18 and 1,136.88 is: 1,705.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,602.12 : 5,404.18 = 1,136.88 : x
  2. Step 2: Convert to fraction form
    3,602.12/5,404.18 = 1,136.88/x
  3. Step 3: Cross multiply
    3,602.12x = 5,404.18 × 1,136.88
  4. Step 4: Simplify right side
    3,602.12x = 6,143,904.16
  5. Step 5: Solve for x
    x = 6,143,904.16/3,602.12
  6. Step 6: Final answer
    x = 1,705.64

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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.