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Finding the Fourth Proportional to 7,207.73, 9,946.37 and 4,064.21

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Solution

The fourth proportional to 7,207.73, 9,946.37 and 4,064.21 is: 5,608.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,207.73 : 9,946.37 = 4,064.21 : x
  2. Step 2: Convert to fraction form
    7,207.73/9,946.37 = 4,064.21/x
  3. Step 3: Cross multiply
    7,207.73x = 9,946.37 × 4,064.21
  4. Step 4: Simplify right side
    7,207.73x = 40,424,116.10
  5. Step 5: Solve for x
    x = 40,424,116.10/7,207.73
  6. Step 6: Final answer
    x = 5,608.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.