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Finding the Fourth Proportional to 6,386.51, 9,579.77 and 2,004.32

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Solution

The fourth proportional to 6,386.51, 9,579.77 and 2,004.32 is: 3,006.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,386.51 : 9,579.77 = 2,004.32 : x
  2. Step 2: Convert to fraction form
    6,386.51/9,579.77 = 2,004.32/x
  3. Step 3: Cross multiply
    6,386.51x = 9,579.77 × 2,004.32
  4. Step 4: Simplify right side
    6,386.51x = 19,200,866.69
  5. Step 5: Solve for x
    x = 19,200,866.69/6,386.51
  6. Step 6: Final answer
    x = 3,006.47

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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.