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Finding the Fourth Proportional to 17,130.85, 25,695.91 and 7,896.85

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Solution

The fourth proportional to 17,130.85, 25,695.91 and 7,896.85 is: 11,845.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,130.85 : 25,695.91 = 7,896.85 : x
  2. Step 2: Convert to fraction form
    17,130.85/25,695.91 = 7,896.85/x
  3. Step 3: Cross multiply
    17,130.85x = 25,695.91 × 7,896.85
  4. Step 4: Simplify right side
    17,130.85x = 202,916,746.88
  5. Step 5: Solve for x
    x = 202,916,746.88/17,130.85
  6. Step 6: Final answer
    x = 11,845.11

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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.