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Finding the Fourth Proportional to 2,472.34, 3,708.52 and 828.88

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Solution

The fourth proportional to 2,472.34, 3,708.52 and 828.88 is: 1,243.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,472.34 : 3,708.52 = 828.88 : x
  2. Step 2: Convert to fraction form
    2,472.34/3,708.52 = 828.88/x
  3. Step 3: Cross multiply
    2,472.34x = 3,708.52 × 828.88
  4. Step 4: Simplify right side
    2,472.34x = 3,073,918.06
  5. Step 5: Solve for x
    x = 3,073,918.06/2,472.34
  6. Step 6: Final answer
    x = 1,243.32

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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.