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Finding the Fourth Proportional to 17,167.40, 25,751.10 and 7,313.78

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Solution

The fourth proportional to 17,167.40, 25,751.10 and 7,313.78 is: 10,970.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,167.40 : 25,751.10 = 7,313.78 : x
  2. Step 2: Convert to fraction form
    17,167.40/25,751.10 = 7,313.78/x
  3. Step 3: Cross multiply
    17,167.40x = 25,751.10 × 7,313.78
  4. Step 4: Simplify right side
    17,167.40x = 188,337,880.16
  5. Step 5: Solve for x
    x = 188,337,880.16/17,167.40
  6. Step 6: Final answer
    x = 10,970.67

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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.