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Finding the Fourth Proportional to 17,209.87, 25,792.93 and 7,339.21

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Solution

The fourth proportional to 17,209.87, 25,792.93 and 7,339.21 is: 10,999.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,209.87 : 25,792.93 = 7,339.21 : x
  2. Step 2: Convert to fraction form
    17,209.87/25,792.93 = 7,339.21/x
  3. Step 3: Cross multiply
    17,209.87x = 25,792.93 × 7,339.21
  4. Step 4: Simplify right side
    17,209.87x = 189,299,674.48
  5. Step 5: Solve for x
    x = 189,299,674.48/17,209.87
  6. Step 6: Final answer
    x = 10,999.48

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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.