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Finding the Fourth Proportional to 7,271.70, 10,907.43 and 3,167.70

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Solution

The fourth proportional to 7,271.70, 10,907.43 and 3,167.70 is: 4,751.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,271.70 : 10,907.43 = 3,167.70 : x
  2. Step 2: Convert to fraction form
    7,271.70/10,907.43 = 3,167.70/x
  3. Step 3: Cross multiply
    7,271.70x = 10,907.43 × 3,167.70
  4. Step 4: Simplify right side
    7,271.70x = 34,551,466.01
  5. Step 5: Solve for x
    x = 34,551,466.01/7,271.70
  6. Step 6: Final answer
    x = 4,751.50

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1.5x scale

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.