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Finding the Fourth Proportional to 6,534.72, 9,780.03 and 3,939.48

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Solution

The fourth proportional to 6,534.72, 9,780.03 and 3,939.48 is: 5,895.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,534.72 : 9,780.03 = 3,939.48 : x
  2. Step 2: Convert to fraction form
    6,534.72/9,780.03 = 3,939.48/x
  3. Step 3: Cross multiply
    6,534.72x = 9,780.03 × 3,939.48
  4. Step 4: Simplify right side
    6,534.72x = 38,528,232.58
  5. Step 5: Solve for x
    x = 38,528,232.58/6,534.72
  6. Step 6: Final answer
    x = 5,895.93

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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.