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Finding the Fourth Proportional to 4,665.28, 6,992.16 and 2,065.28

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Solution

The fourth proportional to 4,665.28, 6,992.16 and 2,065.28 is: 3,095.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,665.28 : 6,992.16 = 2,065.28 : x
  2. Step 2: Convert to fraction form
    4,665.28/6,992.16 = 2,065.28/x
  3. Step 3: Cross multiply
    4,665.28x = 6,992.16 × 2,065.28
  4. Step 4: Simplify right side
    4,665.28x = 14,440,768.20
  5. Step 5: Solve for x
    x = 14,440,768.20/4,665.28
  6. Step 6: Final answer
    x = 3,095.37

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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.