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Finding the Fourth Proportional to 7,005.84, 9,668.10 and 3,862.02

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Solution

The fourth proportional to 7,005.84, 9,668.10 and 3,862.02 is: 5,329.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,005.84 : 9,668.10 = 3,862.02 : x
  2. Step 2: Convert to fraction form
    7,005.84/9,668.10 = 3,862.02/x
  3. Step 3: Cross multiply
    7,005.84x = 9,668.10 × 3,862.02
  4. Step 4: Simplify right side
    7,005.84x = 37,338,395.56
  5. Step 5: Solve for x
    x = 37,338,395.56/7,005.84
  6. Step 6: Final answer
    x = 5,329.61

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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.