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Finding the Fourth Proportional to 3,271.79, 4,907.14 and 962.75

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Solution

The fourth proportional to 3,271.79, 4,907.14 and 962.75 is: 1,443.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,271.79 : 4,907.14 = 962.75 : x
  2. Step 2: Convert to fraction form
    3,271.79/4,907.14 = 962.75/x
  3. Step 3: Cross multiply
    3,271.79x = 4,907.14 × 962.75
  4. Step 4: Simplify right side
    3,271.79x = 4,724,349.04
  5. Step 5: Solve for x
    x = 4,724,349.04/3,271.79
  6. Step 6: Final answer
    x = 1,443.96

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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.