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Finding the Fourth Proportional to 7,050.84, 9,730.44 and 3,907

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Solution

The fourth proportional to 7,050.84, 9,730.44 and 3,907 is: 5,391.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,050.84 : 9,730.44 = 3,907 : x
  2. Step 2: Convert to fraction form
    7,050.84/9,730.44 = 3,907/x
  3. Step 3: Cross multiply
    7,050.84x = 9,730.44 × 3,907
  4. Step 4: Simplify right side
    7,050.84x = 38,016,829.08
  5. Step 5: Solve for x
    x = 38,016,829.08/7,050.84
  6. Step 6: Final answer
    x = 5,391.82

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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.