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Finding the Fourth Proportional to 6,507.80, 9,762.92 and 2,065.28

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Solution

The fourth proportional to 6,507.80, 9,762.92 and 2,065.28 is: 3,098.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,507.80 : 9,762.92 = 2,065.28 : x
  2. Step 2: Convert to fraction form
    6,507.80/9,762.92 = 2,065.28/x
  3. Step 3: Cross multiply
    6,507.80x = 9,762.92 × 2,065.28
  4. Step 4: Simplify right side
    6,507.80x = 20,163,104.28
  5. Step 5: Solve for x
    x = 20,163,104.28/6,507.80
  6. Step 6: Final answer
    x = 3,098.30

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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.