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Finding the Fourth Proportional to 4,922.81, 7,384.16 and 2,841.48

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Solution

The fourth proportional to 4,922.81, 7,384.16 and 2,841.48 is: 4,262.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,922.81 : 7,384.16 = 2,841.48 : x
  2. Step 2: Convert to fraction form
    4,922.81/7,384.16 = 2,841.48/x
  3. Step 3: Cross multiply
    4,922.81x = 7,384.16 × 2,841.48
  4. Step 4: Simplify right side
    4,922.81x = 20,981,950.06
  5. Step 5: Solve for x
    x = 20,981,950.06/4,922.81
  6. Step 6: Final answer
    x = 4,262.19

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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.