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Finding the Fourth Proportional to 7,305.08, 10,956.54 and 2,687

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Solution

The fourth proportional to 7,305.08, 10,956.54 and 2,687 is: 4,030.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,305.08 : 10,956.54 = 2,687 : x
  2. Step 2: Convert to fraction form
    7,305.08/10,956.54 = 2,687/x
  3. Step 3: Cross multiply
    7,305.08x = 10,956.54 × 2,687
  4. Step 4: Simplify right side
    7,305.08x = 29,440,222.98
  5. Step 5: Solve for x
    x = 29,440,222.98/7,305.08
  6. Step 6: Final answer
    x = 4,030.10

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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.