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Finding the Fourth Proportional to 5,827.61, 8,041.79 and 3,309.65

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Solution

The fourth proportional to 5,827.61, 8,041.79 and 3,309.65 is: 4,567.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,827.61 : 8,041.79 = 3,309.65 : x
  2. Step 2: Convert to fraction form
    5,827.61/8,041.79 = 3,309.65/x
  3. Step 3: Cross multiply
    5,827.61x = 8,041.79 × 3,309.65
  4. Step 4: Simplify right side
    5,827.61x = 26,615,453.52
  5. Step 5: Solve for x
    x = 26,615,453.52/5,827.61
  6. Step 6: Final answer
    x = 4,567.13

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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.