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Finding the Fourth Proportional to 2,472.48, 3,708.90 and 829.08

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Solution

The fourth proportional to 2,472.48, 3,708.90 and 829.08 is: 1,243.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,472.48 : 3,708.90 = 829.08 : x
  2. Step 2: Convert to fraction form
    2,472.48/3,708.90 = 829.08/x
  3. Step 3: Cross multiply
    2,472.48x = 3,708.90 × 829.08
  4. Step 4: Simplify right side
    2,472.48x = 3,074,974.81
  5. Step 5: Solve for x
    x = 3,074,974.81/2,472.48
  6. Step 6: Final answer
    x = 1,243.68

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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.