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Finding the Fourth Proportional to 2,685.39, 4,027.65 and 737.13

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Solution

The fourth proportional to 2,685.39, 4,027.65 and 737.13 is: 1,105.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,685.39 : 4,027.65 = 737.13 : x
  2. Step 2: Convert to fraction form
    2,685.39/4,027.65 = 737.13/x
  3. Step 3: Cross multiply
    2,685.39x = 4,027.65 × 737.13
  4. Step 4: Simplify right side
    2,685.39x = 2,968,901.64
  5. Step 5: Solve for x
    x = 2,968,901.64/2,685.39
  6. Step 6: Final answer
    x = 1,105.58

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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.