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Finding the Fourth Proportional to 2,664.04, 3,996.24 and 716.20

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Solution

The fourth proportional to 2,664.04, 3,996.24 and 716.20 is: 1,074.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,664.04 : 3,996.24 = 716.20 : x
  2. Step 2: Convert to fraction form
    2,664.04/3,996.24 = 716.20/x
  3. Step 3: Cross multiply
    2,664.04x = 3,996.24 × 716.20
  4. Step 4: Simplify right side
    2,664.04x = 2,862,107.09
  5. Step 5: Solve for x
    x = 2,862,107.09/2,664.04
  6. Step 6: Final answer
    x = 1,074.35

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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.