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Finding the Fourth Proportional to 2,734.02, 4,101.36 and 786.24

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Solution

The fourth proportional to 2,734.02, 4,101.36 and 786.24 is: 1,179.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,734.02 : 4,101.36 = 786.24 : x
  2. Step 2: Convert to fraction form
    2,734.02/4,101.36 = 786.24/x
  3. Step 3: Cross multiply
    2,734.02x = 4,101.36 × 786.24
  4. Step 4: Simplify right side
    2,734.02x = 3,224,653.29
  5. Step 5: Solve for x
    x = 3,224,653.29/2,734.02
  6. Step 6: Final answer
    x = 1,179.45

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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.