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Finding the Fourth Proportional to 13,907.46, 20,861.25 and 4,673.46

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Solution

The fourth proportional to 13,907.46, 20,861.25 and 4,673.46 is: 7,010.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,907.46 : 20,861.25 = 4,673.46 : x
  2. Step 2: Convert to fraction form
    13,907.46/20,861.25 = 4,673.46/x
  3. Step 3: Cross multiply
    13,907.46x = 20,861.25 × 4,673.46
  4. Step 4: Simplify right side
    13,907.46x = 97,494,217.43
  5. Step 5: Solve for x
    x = 97,494,217.43/13,907.46
  6. Step 6: Final answer
    x = 7,010.21

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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.