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Finding the Fourth Proportional to 6,309.54, 8,707.77 and 3,655.98

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Solution

The fourth proportional to 6,309.54, 8,707.77 and 3,655.98 is: 5,045.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,309.54 : 8,707.77 = 3,655.98 : x
  2. Step 2: Convert to fraction form
    6,309.54/8,707.77 = 3,655.98/x
  3. Step 3: Cross multiply
    6,309.54x = 8,707.77 × 3,655.98
  4. Step 4: Simplify right side
    6,309.54x = 31,835,432.96
  5. Step 5: Solve for x
    x = 31,835,432.96/6,309.54
  6. Step 6: Final answer
    x = 5,045.60

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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.