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Finding the Fourth Proportional to 7,208.62, 9,948.24 and 4,064.82

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Solution

The fourth proportional to 7,208.62, 9,948.24 and 4,064.82 is: 5,609.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,208.62 : 9,948.24 = 4,064.82 : x
  2. Step 2: Convert to fraction form
    7,208.62/9,948.24 = 4,064.82/x
  3. Step 3: Cross multiply
    7,208.62x = 9,948.24 × 4,064.82
  4. Step 4: Simplify right side
    7,208.62x = 40,437,804.92
  5. Step 5: Solve for x
    x = 40,437,804.92/7,208.62
  6. Step 6: Final answer
    x = 5,609.65

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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.