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Finding the Fourth Proportional to 6,448.98, 9,674.01 and 2,065.53

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Solution

The fourth proportional to 6,448.98, 9,674.01 and 2,065.53 is: 3,098.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,448.98 : 9,674.01 = 2,065.53 : x
  2. Step 2: Convert to fraction form
    6,448.98/9,674.01 = 2,065.53/x
  3. Step 3: Cross multiply
    6,448.98x = 9,674.01 × 2,065.53
  4. Step 4: Simplify right side
    6,448.98x = 19,981,957.88
  5. Step 5: Solve for x
    x = 19,981,957.88/6,448.98
  6. Step 6: Final answer
    x = 3,098.47

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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.