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Finding the Fourth Proportional to 17,004.87, 25,478.10 and 13,505.67

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Solution

The fourth proportional to 17,004.87, 25,478.10 and 13,505.67 is: 20,235.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,004.87 : 25,478.10 = 13,505.67 : x
  2. Step 2: Convert to fraction form
    17,004.87/25,478.10 = 13,505.67/x
  3. Step 3: Cross multiply
    17,004.87x = 25,478.10 × 13,505.67
  4. Step 4: Simplify right side
    17,004.87x = 344,098,810.83
  5. Step 5: Solve for x
    x = 344,098,810.83/17,004.87
  6. Step 6: Final answer
    x = 20,235.31

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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.